21644740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{83}}^1$

素因数の和:181

約数の個数: 96

約数和(自身を含む): 53343360

約数和(自身を除く): 31698620

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 59, 65, 68, 83, 85, 118, 130, 166, 170, 221, 236, 260, 295, 332, 340, 415, 442, 590, 767, 830, 884, 1003, 1079, 1105, 1180, 1411, 1534, 1660, 2006, 2158, 2210, 2822, 3068, 3835, 4012, 4316, 4420, 4897, 5015, 5395, 5644, 7055, 7670, 9794, 10030, 10790, 13039, 14110, 15340, 18343, 19588, 20060, 21580, 24485, 26078, 28220, 36686, 48970, 52156, 63661, 65195, 73372, 83249, 91715, 97940, 127322, 130390, 166498, 183430, 254644, 260780, 318305, 332996, 366860, 416245, 636610, 832490, 1082237, 1273220, 1664980, 2164474, 4328948, 5411185, 10822370, 21644740]

約数ペア:

[(1, 21644740), (2, 10822370), (4, 5411185), (5, 4328948), (10, 2164474), (13, 1664980), (17, 1273220), (20, 1082237), (26, 832490), (34, 636610), (52, 416245), (59, 366860), (65, 332996), (68, 318305), (83, 260780), (85, 254644), (118, 183430), (130, 166498), (166, 130390), (170, 127322), (221, 97940), (236, 91715), (260, 83249), (295, 73372), (332, 65195), (340, 63661), (415, 52156), (442, 48970), (590, 36686), (767, 28220), (830, 26078), (884, 24485), (1003, 21580), (1079, 20060), (1105, 19588), (1180, 18343), (1411, 15340), (1534, 14110), (1660, 13039), (2006, 10790), (2158, 10030), (2210, 9794), (2822, 7670), (3068, 7055), (3835, 5644), (4012, 5395), (4316, 5015), (4420, 4897)]