21278822

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{9491}}^1$

素因数の和:9571

約数の個数: 16

約数和(自身を含む): 34171200

約数和(自身を除く): 12892378

約数列:

[1, 2, 19, 38, 59, 118, 1121, 2242, 9491, 18982, 180329, 360658, 559969, 1119938, 10639411, 21278822]

約数ペア:

[(1, 21278822), (2, 10639411), (19, 1119938), (38, 559969), (59, 360658), (118, 180329), (1121, 18982), (2242, 9491)]