13285615

素因数分解:

$5^1\times 7^2\times {\mathrm{211}}^1\times {\mathrm{257}}^1$

素因数の和:487

約数の個数: 24

約数和(自身を含む): 18706032

約数和(自身を除く): 5420417

約数列:

[1, 5, 7, 35, 49, 211, 245, 257, 1055, 1285, 1477, 1799, 7385, 8995, 10339, 12593, 51695, 54227, 62965, 271135, 379589, 1897945, 2657123, 13285615]

約数ペア:

[(1, 13285615), (5, 2657123), (7, 1897945), (35, 379589), (49, 271135), (211, 62965), (245, 54227), (257, 51695), (1055, 12593), (1285, 10339), (1477, 8995), (1799, 7385)]