20149965857

素因数分解:

$7^2\times {\mathrm{311}}^1\times {\mathrm{491}}^1\times {\mathrm{2693}}^1$

素因数の和:3509

約数の個数: 24

約数和(自身を含む): 23571767232

約数和(自身を除く): 3421801375

約数列:

[1, 7, 49, 311, 491, 2177, 2693, 3437, 15239, 18851, 24059, 131957, 152701, 837523, 1068907, 1322263, 5862661, 7482349, 9255841, 41038627, 64790887, 411223793, 2878566551, 20149965857]

約数ペア:

[(1, 20149965857), (7, 2878566551), (49, 411223793), (311, 64790887), (491, 41038627), (2177, 9255841), (2693, 7482349), (3437, 5862661), (15239, 1322263), (18851, 1068907), (24059, 837523), (131957, 152701)]