20187020421

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{645097}}^1$

素因数の和:645186

約数の個数: 32

約数和(自身を含む): 31996860800

約数和(自身を除く): 11809840379

約数列:

[1, 3, 9, 19, 27, 57, 61, 171, 183, 513, 549, 1159, 1647, 3477, 10431, 31293, 645097, 1935291, 5805873, 12256843, 17417619, 36770529, 39350917, 110311587, 118052751, 330934761, 354158253, 747667423, 1062474759, 2243002269, 6729006807, 20187020421]

約数ペア:

[(1, 20187020421), (3, 6729006807), (9, 2243002269), (19, 1062474759), (27, 747667423), (57, 354158253), (61, 330934761), (171, 118052751), (183, 110311587), (513, 39350917), (549, 36770529), (1159, 17417619), (1647, 12256843), (3477, 5805873), (10431, 1935291), (31293, 645097)]