20948408

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{2837}}^1$

素因数の和:2927

約数の個数: 32

約数和(自身を含む): 42910560

約数和(自身を除く): 21962152

約数列:

[1, 2, 4, 8, 13, 26, 52, 71, 104, 142, 284, 568, 923, 1846, 2837, 3692, 5674, 7384, 11348, 22696, 36881, 73762, 147524, 201427, 295048, 402854, 805708, 1611416, 2618551, 5237102, 10474204, 20948408]

約数ペア:

[(1, 20948408), (2, 10474204), (4, 5237102), (8, 2618551), (13, 1611416), (26, 805708), (52, 402854), (71, 295048), (104, 201427), (142, 147524), (284, 73762), (568, 36881), (923, 22696), (1846, 11348), (2837, 7384), (3692, 5674)]