25217913

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{479}}^1$

素因数の和:621

約数の個数: 32

約数和(自身を含む): 40550400

約数和(自身を除く): 15332487

約数列:

[1, 3, 7, 21, 23, 69, 109, 161, 327, 479, 483, 763, 1437, 2289, 2507, 3353, 7521, 10059, 11017, 17549, 33051, 52211, 52647, 77119, 156633, 231357, 365477, 1096431, 1200853, 3602559, 8405971, 25217913]

約数ペア:

[(1, 25217913), (3, 8405971), (7, 3602559), (21, 1200853), (23, 1096431), (69, 365477), (109, 231357), (161, 156633), (327, 77119), (479, 52647), (483, 52211), (763, 33051), (1437, 17549), (2289, 11017), (2507, 10059), (3353, 7521)]