21041925

素因数分解:

$3^1\times 5^2\times {\mathrm{157}}^1\times {\mathrm{1787}}^1$

素因数の和:1957

約数の個数: 24

約数和(自身を含む): 35030496

約数和(自身を除く): 13988571

約数列:

[1, 3, 5, 15, 25, 75, 157, 471, 785, 1787, 2355, 3925, 5361, 8935, 11775, 26805, 44675, 134025, 280559, 841677, 1402795, 4208385, 7013975, 21041925]

約数ペア:

[(1, 21041925), (3, 7013975), (5, 4208385), (15, 1402795), (25, 841677), (75, 280559), (157, 134025), (471, 44675), (785, 26805), (1787, 11775), (2355, 8935), (3925, 5361)]