20218484

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{2719}}^1$

素因数の和:2760

約数の個数: 36

約数和(自身を含む): 41811840

約数和(自身を除く): 21593356

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 169, 286, 338, 572, 676, 1859, 2719, 3718, 5438, 7436, 10876, 29909, 35347, 59818, 70694, 119636, 141388, 388817, 459511, 777634, 919022, 1555268, 1838044, 5054621, 10109242, 20218484]

約数ペア:

[(1, 20218484), (2, 10109242), (4, 5054621), (11, 1838044), (13, 1555268), (22, 919022), (26, 777634), (44, 459511), (52, 388817), (143, 141388), (169, 119636), (286, 70694), (338, 59818), (572, 35347), (676, 29909), (1859, 10876), (2719, 7436), (3718, 5438)]