201224821

素因数分解:

$7^2\times {\mathrm{43}}^2\times {\mathrm{2221}}^1$

素因数の和:2321

約数の個数: 18

約数和(自身を含む): 239756022

約数和(自身を除く): 38531201

約数列:

[1, 7, 43, 49, 301, 1849, 2107, 2221, 12943, 15547, 90601, 95503, 108829, 668521, 4106629, 4679647, 28746403, 201224821]

約数ペア:

[(1, 201224821), (7, 28746403), (43, 4679647), (49, 4106629), (301, 668521), (1849, 108829), (2107, 95503), (2221, 90601), (12943, 15547)]