21885358

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{359}}^1$

素因数の和:552

約数の個数: 32

約数和(自身を含む): 38257920

約数和(自身を除く): 16372562

約数列:

[1, 2, 11, 17, 22, 34, 163, 187, 326, 359, 374, 718, 1793, 2771, 3586, 3949, 5542, 6103, 7898, 12206, 30481, 58517, 60962, 67133, 117034, 134266, 643687, 994789, 1287374, 1989578, 10942679, 21885358]

約数ペア:

[(1, 21885358), (2, 10942679), (11, 1989578), (17, 1287374), (22, 994789), (34, 643687), (163, 134266), (187, 117034), (326, 67133), (359, 60962), (374, 58517), (718, 30481), (1793, 12206), (2771, 7898), (3586, 6103), (3949, 5542)]