18705608

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{157}}^1\times {\mathrm{281}}^1$

素因数の和:497

約数の個数: 32

約数和(自身を含む): 36090360

約数和(自身を除く): 17384752

約数列:

[1, 2, 4, 8, 53, 106, 157, 212, 281, 314, 424, 562, 628, 1124, 1256, 2248, 8321, 14893, 16642, 29786, 33284, 44117, 59572, 66568, 88234, 119144, 176468, 352936, 2338201, 4676402, 9352804, 18705608]

約数ペア:

[(1, 18705608), (2, 9352804), (4, 4676402), (8, 2338201), (53, 352936), (106, 176468), (157, 119144), (212, 88234), (281, 66568), (314, 59572), (424, 44117), (562, 33284), (628, 29786), (1124, 16642), (1256, 14893), (2248, 8321)]