21256384

素因数分解:

$2^6\times {\mathrm{199}}^1\times {\mathrm{1669}}^1$

素因数の和:1880

約数の個数: 28

約数和(自身を含む): 42418000

約数和(自身を除く): 21161616

約数列:

[1, 2, 4, 8, 16, 32, 64, 199, 398, 796, 1592, 1669, 3184, 3338, 6368, 6676, 12736, 13352, 26704, 53408, 106816, 332131, 664262, 1328524, 2657048, 5314096, 10628192, 21256384]

約数ペア:

[(1, 21256384), (2, 10628192), (4, 5314096), (8, 2657048), (16, 1328524), (32, 664262), (64, 332131), (199, 106816), (398, 53408), (796, 26704), (1592, 13352), (1669, 12736), (3184, 6676), (3338, 6368)]