21814870

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{691}}^1$

素因数の和:757

約数の個数: 64

約数和(自身を含む): 50222592

約数和(自身を除く): 28407722

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 41, 55, 70, 77, 82, 110, 154, 205, 287, 385, 410, 451, 574, 691, 770, 902, 1382, 1435, 2255, 2870, 3157, 3455, 4510, 4837, 6314, 6910, 7601, 9674, 15202, 15785, 24185, 28331, 31570, 38005, 48370, 53207, 56662, 76010, 106414, 141655, 198317, 266035, 283310, 311641, 396634, 532070, 623282, 991585, 1558205, 1983170, 2181487, 3116410, 4362974, 10907435, 21814870]

約数ペア:

[(1, 21814870), (2, 10907435), (5, 4362974), (7, 3116410), (10, 2181487), (11, 1983170), (14, 1558205), (22, 991585), (35, 623282), (41, 532070), (55, 396634), (70, 311641), (77, 283310), (82, 266035), (110, 198317), (154, 141655), (205, 106414), (287, 76010), (385, 56662), (410, 53207), (451, 48370), (574, 38005), (691, 31570), (770, 28331), (902, 24185), (1382, 15785), (1435, 15202), (2255, 9674), (2870, 7601), (3157, 6910), (3455, 6314), (4510, 4837)]