401778812421

素因数分解:

$3^2\times 7^1\times {\mathrm{1997}}^1\times {\mathrm{3193511}}^1$

素因数の和:3195521

約数の個数: 24

約数和(自身を含む): 663586245504

約数和(自身を除く): 261807433083

約数列:

[1, 3, 7, 9, 21, 63, 1997, 5991, 13979, 17973, 41937, 125811, 3193511, 9580533, 22354577, 28741599, 67063731, 201191193, 6377441467, 19132324401, 44642090269, 57396973203, 133926270807, 401778812421]

約数ペア:

[(1, 401778812421), (3, 133926270807), (7, 57396973203), (9, 44642090269), (21, 19132324401), (63, 6377441467), (1997, 201191193), (5991, 67063731), (13979, 28741599), (17973, 22354577), (41937, 9580533), (125811, 3193511)]