21242116

素因数分解:

$2^2\times 7^1\times {\mathrm{197}}^1\times {\mathrm{3851}}^1$

素因数の和:4059

約数の個数: 24

約数和(自身を含む): 42710976

約数和(自身を除く): 21468860

約数列:

[1, 2, 4, 7, 14, 28, 197, 394, 788, 1379, 2758, 3851, 5516, 7702, 15404, 26957, 53914, 107828, 758647, 1517294, 3034588, 5310529, 10621058, 21242116]

約数ペア:

[(1, 21242116), (2, 10621058), (4, 5310529), (7, 3034588), (14, 1517294), (28, 758647), (197, 107828), (394, 53914), (788, 26957), (1379, 15404), (2758, 7702), (3851, 5516)]