407396

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{197}}^1$

素因数の和:259

約数の個数: 24

約数和(自身を含む): 798336

約数和(自身を除く): 390940

約数列:

[1, 2, 4, 11, 22, 44, 47, 94, 188, 197, 394, 517, 788, 1034, 2068, 2167, 4334, 8668, 9259, 18518, 37036, 101849, 203698, 407396]

約数ペア:

[(1, 407396), (2, 203698), (4, 101849), (11, 37036), (22, 18518), (44, 9259), (47, 8668), (94, 4334), (188, 2167), (197, 2068), (394, 1034), (517, 788)]