201521391

素因数分解:

$3^1\times {\mathrm{19}}^2\times {\mathrm{73}}^1\times {\mathrm{2549}}^1$

素因数の和:2663

約数の個数: 24

約数和(自身を含む): 287578800

約数和(自身を除く): 86057409

約数列:

[1, 3, 19, 57, 73, 219, 361, 1083, 1387, 2549, 4161, 7647, 26353, 48431, 79059, 145293, 186077, 558231, 920189, 2760567, 3535463, 10606389, 67173797, 201521391]

約数ペア:

[(1, 201521391), (3, 67173797), (19, 10606389), (57, 3535463), (73, 2760567), (219, 920189), (361, 558231), (1083, 186077), (1387, 145293), (2549, 79059), (4161, 48431), (7647, 26353)]