18988934

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{317}}^1\times {\mathrm{491}}^1$

素因数の和:871

約数の個数: 16

約数和(自身を含む): 29100816

約数和(自身を除く): 10111882

約数列:

[1, 2, 61, 122, 317, 491, 634, 982, 19337, 29951, 38674, 59902, 155647, 311294, 9494467, 18988934]

約数ペア:

[(1, 18988934), (2, 9494467), (61, 311294), (122, 155647), (317, 59902), (491, 38674), (634, 29951), (982, 19337)]