15721275

素因数分解:

$3^1\times 5^2\times {\mathrm{97}}^1\times {\mathrm{2161}}^1$

素因数の和:2271

約数の個数: 24

約数和(自身を含む): 26272624

約数和(自身を除く): 10551349

約数列:

[1, 3, 5, 15, 25, 75, 97, 291, 485, 1455, 2161, 2425, 6483, 7275, 10805, 32415, 54025, 162075, 209617, 628851, 1048085, 3144255, 5240425, 15721275]

約数ペア:

[(1, 15721275), (3, 5240425), (5, 3144255), (15, 1048085), (25, 628851), (75, 209617), (97, 162075), (291, 54025), (485, 32415), (1455, 10805), (2161, 7275), (2425, 6483)]