21401475

素因数分解:

$3^1\times 5^2\times {\mathrm{67}}^1\times {\mathrm{4259}}^1$

素因数の和:4339

約数の個数: 24

約数和(自身を含む): 35920320

約数和(自身を除く): 14518845

約数列:

[1, 3, 5, 15, 25, 67, 75, 201, 335, 1005, 1675, 4259, 5025, 12777, 21295, 63885, 106475, 285353, 319425, 856059, 1426765, 4280295, 7133825, 21401475]

約数ペア:

[(1, 21401475), (3, 7133825), (5, 4280295), (15, 1426765), (25, 856059), (67, 319425), (75, 285353), (201, 106475), (335, 63885), (1005, 21295), (1675, 12777), (4259, 5025)]