18387908

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{227}}^1\times {\mathrm{263}}^1$

素因数の和:512

約数の個数: 48

約数和(自身を含む): 40449024

約数和(自身を除く): 22061116

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 227, 263, 308, 454, 526, 908, 1052, 1589, 1841, 2497, 2893, 3178, 3682, 4994, 5786, 6356, 7364, 9988, 11572, 17479, 20251, 34958, 40502, 59701, 69916, 81004, 119402, 238804, 417907, 656711, 835814, 1313422, 1671628, 2626844, 4596977, 9193954, 18387908]

約数ペア:

[(1, 18387908), (2, 9193954), (4, 4596977), (7, 2626844), (11, 1671628), (14, 1313422), (22, 835814), (28, 656711), (44, 417907), (77, 238804), (154, 119402), (227, 81004), (263, 69916), (308, 59701), (454, 40502), (526, 34958), (908, 20251), (1052, 17479), (1589, 11572), (1841, 9988), (2497, 7364), (2893, 6356), (3178, 5786), (3682, 4994)]