21128688

素因数分解:

$2^4\times 3^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1$

素因数の和:181

約数の個数: 200

約数和(自身を含む): 74539872

約数和(自身を除く): 53411184

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 17, 18, 21, 24, 27, 28, 34, 36, 42, 48, 51, 54, 56, 63, 68, 72, 81, 84, 102, 108, 112, 119, 126, 136, 137, 144, 153, 162, 168, 189, 204, 216, 238, 252, 272, 274, 306, 324, 336, 357, 378, 408, 411, 432, 459, 476, 504, 548, 567, 612, 648, 714, 756, 816, 822, 918, 952, 959, 1008, 1071, 1096, 1134, 1224, 1233, 1296, 1377, 1428, 1512, 1644, 1836, 1904, 1918, 2142, 2192, 2268, 2329, 2448, 2466, 2754, 2856, 2877, 3024, 3213, 3288, 3672, 3699, 3836, 4284, 4536, 4658, 4932, 5508, 5712, 5754, 6426, 6576, 6987, 7344, 7398, 7672, 8568, 8631, 9072, 9316, 9639, 9864, 11016, 11097, 11508, 12852, 13974, 14796, 15344, 16303, 17136, 17262, 18632, 19278, 19728, 20961, 22032, 22194, 23016, 25704, 25893, 27948, 29592, 32606, 34524, 37264, 38556, 41922, 44388, 46032, 48909, 51408, 51786, 55896, 59184, 62883, 65212, 69048, 77112, 77679, 83844, 88776, 97818, 103572, 111792, 125766, 130424, 138096, 146727, 154224, 155358, 167688, 177552, 188649, 195636, 207144, 251532, 260848, 293454, 310716, 335376, 377298, 391272, 414288, 440181, 503064, 586908, 621432, 754596, 782544, 880362, 1006128, 1173816, 1242864, 1320543, 1509192, 1760724, 2347632, 2641086, 3018384, 3521448, 5282172, 7042896, 10564344, 21128688]

約数ペア:

[(1, 21128688), (2, 10564344), (3, 7042896), (4, 5282172), (6, 3521448), (7, 3018384), (8, 2641086), (9, 2347632), (12, 1760724), (14, 1509192), (16, 1320543), (17, 1242864), (18, 1173816), (21, 1006128), (24, 880362), (27, 782544), (28, 754596), (34, 621432), (36, 586908), (42, 503064), (48, 440181), (51, 414288), (54, 391272), (56, 377298), (63, 335376), (68, 310716), (72, 293454), (81, 260848), (84, 251532), (102, 207144), (108, 195636), (112, 188649), (119, 177552), (126, 167688), (136, 155358), (137, 154224), (144, 146727), (153, 138096), (162, 130424), (168, 125766), (189, 111792), (204, 103572), (216, 97818), (238, 88776), (252, 83844), (272, 77679), (274, 77112), (306, 69048), (324, 65212), (336, 62883), (357, 59184), (378, 55896), (408, 51786), (411, 51408), (432, 48909), (459, 46032), (476, 44388), (504, 41922), (548, 38556), (567, 37264), (612, 34524), (648, 32606), (714, 29592), (756, 27948), (816, 25893), (822, 25704), (918, 23016), (952, 22194), (959, 22032), (1008, 20961), (1071, 19728), (1096, 19278), (1134, 18632), (1224, 17262), (1233, 17136), (1296, 16303), (1377, 15344), (1428, 14796), (1512, 13974), (1644, 12852), (1836, 11508), (1904, 11097), (1918, 11016), (2142, 9864), (2192, 9639), (2268, 9316), (2329, 9072), (2448, 8631), (2466, 8568), (2754, 7672), (2856, 7398), (2877, 7344), (3024, 6987), (3213, 6576), (3288, 6426), (3672, 5754), (3699, 5712), (3836, 5508), (4284, 4932), (4536, 4658)]