18995768

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{2957}}^1$

素因数の和:3047

約数の個数: 32

約数和(自身を含む): 39400560

約数和(自身を除く): 20404792

約数列:

[1, 2, 4, 8, 11, 22, 44, 73, 88, 146, 292, 584, 803, 1606, 2957, 3212, 5914, 6424, 11828, 23656, 32527, 65054, 130108, 215861, 260216, 431722, 863444, 1726888, 2374471, 4748942, 9497884, 18995768]

約数ペア:

[(1, 18995768), (2, 9497884), (4, 4748942), (8, 2374471), (11, 1726888), (22, 863444), (44, 431722), (73, 260216), (88, 215861), (146, 130108), (292, 65054), (584, 32527), (803, 23656), (1606, 11828), (2957, 6424), (3212, 5914)]