21457983

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1\times {\mathrm{1289}}^1$

素因数の和:1502

約数の個数: 16

約数和(自身を含む): 29721600

約数和(自身を除く): 8263617

約数列:

[1, 3, 31, 93, 179, 537, 1289, 3867, 5549, 16647, 39959, 119877, 230731, 692193, 7152661, 21457983]

約数ペア:

[(1, 21457983), (3, 7152661), (31, 692193), (93, 230731), (179, 119877), (537, 39959), (1289, 16647), (3867, 5549)]