18717153

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1$

素因数の和:186

約数の個数: 64

約数和(自身を含む): 33707520

約数和(自身を除く): 14990367

約数列:

[1, 3, 7, 13, 17, 21, 37, 39, 51, 91, 109, 111, 119, 221, 259, 273, 327, 357, 481, 629, 663, 763, 777, 1417, 1443, 1547, 1853, 1887, 2289, 3367, 4033, 4251, 4403, 4641, 5559, 8177, 9919, 10101, 12099, 12971, 13209, 24089, 24531, 28231, 29757, 38913, 52429, 57239, 68561, 72267, 84693, 157287, 168623, 171717, 205683, 367003, 479927, 505869, 891293, 1101009, 1439781, 2673879, 6239051, 18717153]

約数ペア:

[(1, 18717153), (3, 6239051), (7, 2673879), (13, 1439781), (17, 1101009), (21, 891293), (37, 505869), (39, 479927), (51, 367003), (91, 205683), (109, 171717), (111, 168623), (119, 157287), (221, 84693), (259, 72267), (273, 68561), (327, 57239), (357, 52429), (481, 38913), (629, 29757), (663, 28231), (763, 24531), (777, 24089), (1417, 13209), (1443, 12971), (1547, 12099), (1853, 10101), (1887, 9919), (2289, 8177), (3367, 5559), (4033, 4641), (4251, 4403)]