21367525

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{349}}^1$

素因数の和:469

約数の個数: 24

約数和(自身を含む): 27776000

約数和(自身を除く): 6408475

約数列:

[1, 5, 25, 31, 79, 155, 349, 395, 775, 1745, 1975, 2449, 8725, 10819, 12245, 27571, 54095, 61225, 137855, 270475, 689275, 854701, 4273505, 21367525]

約数ペア:

[(1, 21367525), (5, 4273505), (25, 854701), (31, 689275), (79, 270475), (155, 137855), (349, 61225), (395, 54095), (775, 27571), (1745, 12245), (1975, 10819), (2449, 8725)]