21649016

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{51059}}^1$

素因数の和:51118

約数の個数: 16

約数和(自身を含む): 41358600

約数和(自身を除く): 19709584

約数列:

[1, 2, 4, 8, 53, 106, 212, 424, 51059, 102118, 204236, 408472, 2706127, 5412254, 10824508, 21649016]

約数ペア:

[(1, 21649016), (2, 10824508), (4, 5412254), (8, 2706127), (53, 408472), (106, 204236), (212, 102118), (424, 51059)]