21212925

素因数分解:

$3^1\times 5^2\times {\mathrm{113}}^1\times {\mathrm{2503}}^1$

素因数の和:2629

約数の個数: 24

約数和(自身を含む): 35396544

約数和(自身を除く): 14183619

約数列:

[1, 3, 5, 15, 25, 75, 113, 339, 565, 1695, 2503, 2825, 7509, 8475, 12515, 37545, 62575, 187725, 282839, 848517, 1414195, 4242585, 7070975, 21212925]

約数ペア:

[(1, 21212925), (3, 7070975), (5, 4242585), (15, 1414195), (25, 848517), (75, 282839), (113, 187725), (339, 62575), (565, 37545), (1695, 12515), (2503, 8475), (2825, 7509)]