21570928

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{70957}}^1$

素因数の和:70984

約数の個数: 20

約数和(自身を含む): 43993960

約数和(自身を除く): 22423032

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 70957, 141914, 283828, 567656, 1135312, 1348183, 2696366, 5392732, 10785464, 21570928]

約数ペア:

[(1, 21570928), (2, 10785464), (4, 5392732), (8, 2696366), (16, 1348183), (19, 1135312), (38, 567656), (76, 283828), (152, 141914), (304, 70957)]