18811078

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1$

素因数の和:169

約数の個数: 64

約数和(自身を含む): 36251712

約数和(自身を除く): 17440634

約数列:

[1, 2, 11, 13, 17, 22, 26, 34, 53, 73, 106, 143, 146, 187, 221, 286, 374, 442, 583, 689, 803, 901, 949, 1166, 1241, 1378, 1606, 1802, 1898, 2431, 2482, 3869, 4862, 7579, 7738, 9911, 10439, 11713, 13651, 15158, 16133, 19822, 20878, 23426, 27302, 32266, 42559, 50297, 65773, 85118, 100594, 128843, 131546, 177463, 257686, 354926, 553267, 723503, 855049, 1106534, 1447006, 1710098, 9405539, 18811078]

約数ペア:

[(1, 18811078), (2, 9405539), (11, 1710098), (13, 1447006), (17, 1106534), (22, 855049), (26, 723503), (34, 553267), (53, 354926), (73, 257686), (106, 177463), (143, 131546), (146, 128843), (187, 100594), (221, 85118), (286, 65773), (374, 50297), (442, 42559), (583, 32266), (689, 27302), (803, 23426), (901, 20878), (949, 19822), (1166, 16133), (1241, 15158), (1378, 13651), (1606, 11713), (1802, 10439), (1898, 9911), (2431, 7738), (2482, 7579), (3869, 4862)]