20515628

素因数分解:

$2^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{10037}}^1$

素因数の和:10121

約数の個数: 24

約数和(自身を含む): 41597472

約数和(自身を除く): 21081844

約数列:

[1, 2, 4, 7, 14, 28, 73, 146, 292, 511, 1022, 2044, 10037, 20074, 40148, 70259, 140518, 281036, 732701, 1465402, 2930804, 5128907, 10257814, 20515628]

約数ペア:

[(1, 20515628), (2, 10257814), (4, 5128907), (7, 2930804), (14, 1465402), (28, 732701), (73, 281036), (146, 140518), (292, 70259), (511, 40148), (1022, 20074), (2044, 10037)]