21167658421

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1071943}}^1$

素因数の和:1072001

約数の個数: 24

約数和(自身を含む): 27373161984

約数和(自身を除く): 6205503563

約数列:

[1, 7, 13, 31, 49, 91, 217, 403, 637, 1519, 2821, 19747, 1071943, 7503601, 13935259, 33230233, 52525207, 97546813, 232611631, 431993029, 682827691, 1628281417, 3023951203, 21167658421]

約数ペア:

[(1, 21167658421), (7, 3023951203), (13, 1628281417), (31, 682827691), (49, 431993029), (91, 232611631), (217, 97546813), (403, 52525207), (637, 33230233), (1519, 13935259), (2821, 7503601), (19747, 1071943)]