21556612

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{179}}^1$

素因数の和:241

約数の個数: 96

約数和(自身を含む): 52254720

約数和(自身を除く): 30698108

約数列:

[1, 2, 4, 7, 11, 14, 17, 22, 23, 28, 34, 44, 46, 68, 77, 92, 119, 154, 161, 179, 187, 238, 253, 308, 322, 358, 374, 391, 476, 506, 644, 716, 748, 782, 1012, 1253, 1309, 1564, 1771, 1969, 2506, 2618, 2737, 3043, 3542, 3938, 4117, 4301, 5012, 5236, 5474, 6086, 7084, 7876, 8234, 8602, 10948, 12172, 13783, 16468, 17204, 21301, 27566, 28819, 30107, 33473, 42602, 45287, 55132, 57638, 60214, 66946, 69989, 85204, 90574, 115276, 120428, 133892, 139978, 181148, 234311, 279956, 317009, 468622, 489923, 634018, 769879, 937244, 979846, 1268036, 1539758, 1959692, 3079516, 5389153, 10778306, 21556612]

約数ペア:

[(1, 21556612), (2, 10778306), (4, 5389153), (7, 3079516), (11, 1959692), (14, 1539758), (17, 1268036), (22, 979846), (23, 937244), (28, 769879), (34, 634018), (44, 489923), (46, 468622), (68, 317009), (77, 279956), (92, 234311), (119, 181148), (154, 139978), (161, 133892), (179, 120428), (187, 115276), (238, 90574), (253, 85204), (308, 69989), (322, 66946), (358, 60214), (374, 57638), (391, 55132), (476, 45287), (506, 42602), (644, 33473), (716, 30107), (748, 28819), (782, 27566), (1012, 21301), (1253, 17204), (1309, 16468), (1564, 13783), (1771, 12172), (1969, 10948), (2506, 8602), (2618, 8234), (2737, 7876), (3043, 7084), (3542, 6086), (3938, 5474), (4117, 5236), (4301, 5012)]