21568353404

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{443}}^1\times {\mathrm{15349}}^1$

素因数の和:15870

約数の個数: 48

約数和(自身を含む): 41410370400

約数和(自身を除く): 19842016996

約数列:

[1, 2, 4, 13, 26, 52, 61, 122, 244, 443, 793, 886, 1586, 1772, 3172, 5759, 11518, 15349, 23036, 27023, 30698, 54046, 61396, 108092, 199537, 351299, 399074, 702598, 798148, 936289, 1405196, 1872578, 3745156, 6799607, 12171757, 13599214, 24343514, 27198428, 48687028, 88394891, 176789782, 353579564, 414776027, 829552054, 1659104108, 5392088351, 10784176702, 21568353404]

約数ペア:

[(1, 21568353404), (2, 10784176702), (4, 5392088351), (13, 1659104108), (26, 829552054), (52, 414776027), (61, 353579564), (122, 176789782), (244, 88394891), (443, 48687028), (793, 27198428), (886, 24343514), (1586, 13599214), (1772, 12171757), (3172, 6799607), (5759, 3745156), (11518, 1872578), (15349, 1405196), (23036, 936289), (27023, 798148), (30698, 702598), (54046, 399074), (61396, 351299), (108092, 199537)]