21731475

素因数分解:

$3^1\times 5^2\times {\mathrm{83}}^1\times {\mathrm{3491}}^1$

素因数の和:3587

約数の個数: 24

約数和(自身を含む): 36372672

約数和(自身を除く): 14641197

約数列:

[1, 3, 5, 15, 25, 75, 83, 249, 415, 1245, 2075, 3491, 6225, 10473, 17455, 52365, 87275, 261825, 289753, 869259, 1448765, 4346295, 7243825, 21731475]

約数ペア:

[(1, 21731475), (3, 7243825), (5, 4346295), (15, 1448765), (25, 869259), (75, 289753), (83, 261825), (249, 87275), (415, 52365), (1245, 17455), (2075, 10473), (3491, 6225)]