19747637

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1069}}^1$

素因数の和:1125

約数の個数: 24

約数和(自身を含む): 25615800

約数和(自身を除く): 5868163

約数列:

[1, 7, 13, 29, 49, 91, 203, 377, 637, 1069, 1421, 2639, 7483, 13897, 18473, 31001, 52381, 97279, 217007, 403013, 680953, 1519049, 2821091, 19747637]

約数ペア:

[(1, 19747637), (7, 2821091), (13, 1519049), (29, 680953), (49, 403013), (91, 217007), (203, 97279), (377, 52381), (637, 31001), (1069, 18473), (1421, 13897), (2639, 7483)]