21976040

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{23887}}^1$

素因数の和:23921

約数の個数: 32

約数和(自身を含む): 51598080

約数和(自身を除く): 29622040

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 23887, 47774, 95548, 119435, 191096, 238870, 477740, 549401, 955480, 1098802, 2197604, 2747005, 4395208, 5494010, 10988020, 21976040]

約数ペア:

[(1, 21976040), (2, 10988020), (4, 5494010), (5, 4395208), (8, 2747005), (10, 2197604), (20, 1098802), (23, 955480), (40, 549401), (46, 477740), (92, 238870), (115, 191096), (184, 119435), (230, 95548), (460, 47774), (920, 23887)]