20505014719

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{937}}^1\times {\mathrm{4447}}^1$

素因数の和:5447

約数の個数: 32

約数和(自身を含む): 25367121920

約数和(自身を除く): 4862107201

約数列:

[1, 7, 19, 37, 133, 259, 703, 937, 4447, 4921, 6559, 17803, 31129, 34669, 84493, 124621, 164539, 242683, 591451, 658711, 1151773, 3126241, 4166839, 4610977, 21883687, 29167873, 79169941, 154173043, 554189587, 1079211301, 2929287817, 20505014719]

約数ペア:

[(1, 20505014719), (7, 2929287817), (19, 1079211301), (37, 554189587), (133, 154173043), (259, 79169941), (703, 29167873), (937, 21883687), (4447, 4610977), (4921, 4166839), (6559, 3126241), (17803, 1151773), (31129, 658711), (34669, 591451), (84493, 242683), (124621, 164539)]