21175748

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{4259}}^1$

素因数の和:4387

約数の個数: 24

約数和(自身を含む): 40793760

約数和(自身を除く): 19618012

約数列:

[1, 2, 4, 11, 22, 44, 113, 226, 452, 1243, 2486, 4259, 4972, 8518, 17036, 46849, 93698, 187396, 481267, 962534, 1925068, 5293937, 10587874, 21175748]

約数ペア:

[(1, 21175748), (2, 10587874), (4, 5293937), (11, 1925068), (22, 962534), (44, 481267), (113, 187396), (226, 93698), (452, 46849), (1243, 17036), (2486, 8518), (4259, 4972)]