21804948

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1$

素因数の和:158

約数の個数: 144

約数和(自身を含む): 66044160

約数和(自身を除く): 44239212

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 17, 18, 22, 33, 34, 36, 41, 44, 51, 66, 68, 79, 82, 99, 102, 123, 132, 153, 158, 164, 187, 198, 204, 237, 246, 306, 316, 369, 374, 396, 451, 474, 492, 561, 612, 697, 711, 738, 748, 869, 902, 948, 1122, 1343, 1353, 1394, 1422, 1476, 1683, 1738, 1804, 2091, 2244, 2607, 2686, 2706, 2788, 2844, 3239, 3366, 3476, 4029, 4059, 4182, 5214, 5372, 5412, 6273, 6478, 6732, 7667, 7821, 8058, 8118, 8364, 9717, 10428, 12087, 12546, 12956, 14773, 15334, 15642, 16116, 16236, 19434, 23001, 24174, 25092, 29151, 29546, 30668, 31284, 35629, 38868, 44319, 46002, 48348, 55063, 58302, 59092, 69003, 71258, 88638, 92004, 106887, 110126, 116604, 132957, 138006, 142516, 165189, 177276, 213774, 220252, 265914, 276012, 320661, 330378, 427548, 495567, 531828, 605693, 641322, 660756, 991134, 1211386, 1282644, 1817079, 1982268, 2422772, 3634158, 5451237, 7268316, 10902474, 21804948]

約数ペア:

[(1, 21804948), (2, 10902474), (3, 7268316), (4, 5451237), (6, 3634158), (9, 2422772), (11, 1982268), (12, 1817079), (17, 1282644), (18, 1211386), (22, 991134), (33, 660756), (34, 641322), (36, 605693), (41, 531828), (44, 495567), (51, 427548), (66, 330378), (68, 320661), (79, 276012), (82, 265914), (99, 220252), (102, 213774), (123, 177276), (132, 165189), (153, 142516), (158, 138006), (164, 132957), (187, 116604), (198, 110126), (204, 106887), (237, 92004), (246, 88638), (306, 71258), (316, 69003), (369, 59092), (374, 58302), (396, 55063), (451, 48348), (474, 46002), (492, 44319), (561, 38868), (612, 35629), (697, 31284), (711, 30668), (738, 29546), (748, 29151), (869, 25092), (902, 24174), (948, 23001), (1122, 19434), (1343, 16236), (1353, 16116), (1394, 15642), (1422, 15334), (1476, 14773), (1683, 12956), (1738, 12546), (1804, 12087), (2091, 10428), (2244, 9717), (2607, 8364), (2686, 8118), (2706, 8058), (2788, 7821), (2844, 7667), (3239, 6732), (3366, 6478), (3476, 6273), (4029, 5412), (4059, 5372), (4182, 5214)]