20121490207

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2039}}^1\times {\mathrm{6379}}^1$

素因数の和:8455

約数の個数: 32

約数和(自身を含む): 26238643200

約数和(自身を除く): 6117152993

約数列:

[1, 7, 13, 17, 91, 119, 221, 1547, 2039, 6379, 14273, 26507, 34663, 44653, 82927, 108443, 185549, 242641, 450619, 580489, 759101, 1409759, 3154333, 9868313, 13006781, 91047467, 169088153, 221115277, 1183617071, 1547806939, 2874498601, 20121490207]

約数ペア:

[(1, 20121490207), (7, 2874498601), (13, 1547806939), (17, 1183617071), (91, 221115277), (119, 169088153), (221, 91047467), (1547, 13006781), (2039, 9868313), (6379, 3154333), (14273, 1409759), (26507, 759101), (34663, 580489), (44653, 450619), (82927, 242641), (108443, 185549)]