21558315457

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{4783}}^1\times {\mathrm{12149}}^1$

素因数の和:16992

約数の個数: 16

約数和(自身を含む): 25110259200

約数和(自身を除く): 3551943743

約数列:

[1, 7, 53, 371, 4783, 12149, 33481, 85043, 253499, 643897, 1774493, 4507279, 58108667, 406760669, 3079759351, 21558315457]

約数ペア:

[(1, 21558315457), (7, 3079759351), (53, 406760669), (371, 58108667), (4783, 4507279), (12149, 1774493), (33481, 643897), (85043, 253499)]