21096088

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{2857}}^1$

素因数の和:2947

約数の個数: 32

約数和(自身を含む): 43212960

約数和(自身を除く): 22116872

約数列:

[1, 2, 4, 8, 13, 26, 52, 71, 104, 142, 284, 568, 923, 1846, 2857, 3692, 5714, 7384, 11428, 22856, 37141, 74282, 148564, 202847, 297128, 405694, 811388, 1622776, 2637011, 5274022, 10548044, 21096088]

約数ペア:

[(1, 21096088), (2, 10548044), (4, 5274022), (8, 2637011), (13, 1622776), (26, 811388), (52, 405694), (71, 297128), (104, 202847), (142, 148564), (284, 74282), (568, 37141), (923, 22856), (1846, 11428), (2857, 7384), (3692, 5714)]