25140871

素因数分解:

$7^4\times {\mathrm{37}}^1\times {\mathrm{283}}^1$

素因数の和:348

約数の個数: 20

約数和(自身を含む): 30228392

約数和(自身を除く): 5087521

約数列:

[1, 7, 37, 49, 259, 283, 343, 1813, 1981, 2401, 10471, 12691, 13867, 73297, 88837, 97069, 513079, 679483, 3591553, 25140871]

約数ペア:

[(1, 25140871), (7, 3591553), (37, 679483), (49, 513079), (259, 97069), (283, 88837), (343, 73297), (1813, 13867), (1981, 12691), (2401, 10471)]