21034525

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1151}}^1$

素因数の和:1221

約数の個数: 24

約数和(自身を含む): 28283904

約数和(自身を除く): 7249379

約数列:

[1, 5, 17, 25, 43, 85, 215, 425, 731, 1075, 1151, 3655, 5755, 18275, 19567, 28775, 49493, 97835, 247465, 489175, 841381, 1237325, 4206905, 21034525]

約数ペア:

[(1, 21034525), (5, 4206905), (17, 1237325), (25, 841381), (43, 489175), (85, 247465), (215, 97835), (425, 49493), (731, 28775), (1075, 19567), (1151, 18275), (3655, 5755)]