21028025

素因数分解:

$5^2\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{179}}^1$

素因数の和:353

約数の個数: 24

約数和(自身を含む): 27141120

約数和(自身を除く): 6113095

約数列:

[1, 5, 25, 37, 127, 179, 185, 635, 895, 925, 3175, 4475, 4699, 6623, 22733, 23495, 33115, 113665, 117475, 165575, 568325, 841121, 4205605, 21028025]

約数ペア:

[(1, 21028025), (5, 4205605), (25, 841121), (37, 568325), (127, 165575), (179, 117475), (185, 113665), (635, 33115), (895, 23495), (925, 22733), (3175, 6623), (4475, 4699)]