21688056

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1$

素因数の和:118

約数の個数: 192

約数和(自身を含む): 70761600

約数和(自身を除く): 49073544

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 17, 18, 24, 26, 29, 34, 36, 39, 47, 51, 52, 58, 68, 72, 78, 87, 94, 102, 104, 116, 117, 136, 141, 153, 156, 174, 188, 204, 221, 232, 234, 261, 282, 306, 312, 348, 376, 377, 408, 423, 442, 468, 493, 522, 564, 611, 612, 663, 696, 754, 799, 846, 884, 936, 986, 1044, 1128, 1131, 1222, 1224, 1326, 1363, 1479, 1508, 1598, 1692, 1768, 1833, 1972, 1989, 2088, 2262, 2397, 2444, 2652, 2726, 2958, 3016, 3196, 3384, 3393, 3666, 3944, 3978, 4089, 4437, 4524, 4794, 4888, 5304, 5452, 5499, 5916, 6392, 6409, 6786, 7191, 7332, 7956, 8178, 8874, 9048, 9588, 10387, 10904, 10998, 11832, 12267, 12818, 13572, 14382, 14664, 15912, 16356, 17719, 17748, 19176, 19227, 20774, 21996, 23171, 24534, 25636, 27144, 28764, 31161, 32712, 35438, 35496, 38454, 41548, 43992, 46342, 49068, 51272, 53157, 57528, 57681, 62322, 69513, 70876, 76908, 83096, 92684, 93483, 98136, 106314, 115362, 124644, 139026, 141752, 153816, 159471, 185368, 186966, 208539, 212628, 230724, 249288, 278052, 301223, 318942, 373932, 417078, 425256, 461448, 556104, 602446, 637884, 747864, 834156, 903669, 1204892, 1275768, 1668312, 1807338, 2409784, 2711007, 3614676, 5422014, 7229352, 10844028, 21688056]

約数ペア:

[(1, 21688056), (2, 10844028), (3, 7229352), (4, 5422014), (6, 3614676), (8, 2711007), (9, 2409784), (12, 1807338), (13, 1668312), (17, 1275768), (18, 1204892), (24, 903669), (26, 834156), (29, 747864), (34, 637884), (36, 602446), (39, 556104), (47, 461448), (51, 425256), (52, 417078), (58, 373932), (68, 318942), (72, 301223), (78, 278052), (87, 249288), (94, 230724), (102, 212628), (104, 208539), (116, 186966), (117, 185368), (136, 159471), (141, 153816), (153, 141752), (156, 139026), (174, 124644), (188, 115362), (204, 106314), (221, 98136), (232, 93483), (234, 92684), (261, 83096), (282, 76908), (306, 70876), (312, 69513), (348, 62322), (376, 57681), (377, 57528), (408, 53157), (423, 51272), (442, 49068), (468, 46342), (493, 43992), (522, 41548), (564, 38454), (611, 35496), (612, 35438), (663, 32712), (696, 31161), (754, 28764), (799, 27144), (846, 25636), (884, 24534), (936, 23171), (986, 21996), (1044, 20774), (1128, 19227), (1131, 19176), (1222, 17748), (1224, 17719), (1326, 16356), (1363, 15912), (1479, 14664), (1508, 14382), (1598, 13572), (1692, 12818), (1768, 12267), (1833, 11832), (1972, 10998), (1989, 10904), (2088, 10387), (2262, 9588), (2397, 9048), (2444, 8874), (2652, 8178), (2726, 7956), (2958, 7332), (3016, 7191), (3196, 6786), (3384, 6409), (3393, 6392), (3666, 5916), (3944, 5499), (3978, 5452), (4089, 5304), (4437, 4888), (4524, 4794)]