19924723

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1009}}^1$

素因数の和:1067

約数の個数: 24

約数和(自身を含む): 25791360

約数和(自身を除く): 5866637

約数列:

[1, 7, 13, 31, 49, 91, 217, 403, 637, 1009, 1519, 2821, 7063, 13117, 19747, 31279, 49441, 91819, 218953, 406627, 642733, 1532671, 2846389, 19924723]

約数ペア:

[(1, 19924723), (7, 2846389), (13, 1532671), (31, 642733), (49, 406627), (91, 218953), (217, 91819), (403, 49441), (637, 31279), (1009, 19747), (1519, 13117), (2821, 7063)]