12171025

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{347}}^1$

素因数の和:441

約数の個数: 24

約数和(自身を含む): 16052544

約数和(自身を除く): 3881519

約数列:

[1, 5, 23, 25, 61, 115, 305, 347, 575, 1403, 1525, 1735, 7015, 7981, 8675, 21167, 35075, 39905, 105835, 199525, 486841, 529175, 2434205, 12171025]

約数ペア:

[(1, 12171025), (5, 2434205), (23, 529175), (25, 486841), (61, 199525), (115, 105835), (305, 39905), (347, 35075), (575, 21167), (1403, 8675), (1525, 7981), (1735, 7015)]