21262510

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{467}}^1$

素因数の和:660

約数の個数: 32

約数和(自身を含む): 39929760

約数和(自身を除く): 18667250

約数列:

[1, 2, 5, 10, 29, 58, 145, 157, 290, 314, 467, 785, 934, 1570, 2335, 4553, 4670, 9106, 13543, 22765, 27086, 45530, 67715, 73319, 135430, 146638, 366595, 733190, 2126251, 4252502, 10631255, 21262510]

約数ペア:

[(1, 21262510), (2, 10631255), (5, 4252502), (10, 2126251), (29, 733190), (58, 366595), (145, 146638), (157, 135430), (290, 73319), (314, 67715), (467, 45530), (785, 27086), (934, 22765), (1570, 13543), (2335, 9106), (4553, 4670)]