19932848

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{1571}}^1$

素因数の和:1653

約数の個数: 40

約数和(自身を含む): 42299376

約数和(自身を除く): 22366528

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 61, 104, 122, 208, 244, 488, 793, 976, 1571, 1586, 3142, 3172, 6284, 6344, 12568, 12688, 20423, 25136, 40846, 81692, 95831, 163384, 191662, 326768, 383324, 766648, 1245803, 1533296, 2491606, 4983212, 9966424, 19932848]

約数ペア:

[(1, 19932848), (2, 9966424), (4, 4983212), (8, 2491606), (13, 1533296), (16, 1245803), (26, 766648), (52, 383324), (61, 326768), (104, 191662), (122, 163384), (208, 95831), (244, 81692), (488, 40846), (793, 25136), (976, 20423), (1571, 12688), (1586, 12568), (3142, 6344), (3172, 6284)]