21615465027

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{285251}}^1$

素因数の和:285363

約数の個数: 32

約数和(自身を含む): 32587188480

約数和(自身を除く): 10971723453

約数列:

[1, 3, 13, 29, 39, 67, 87, 201, 377, 871, 1131, 1943, 2613, 5829, 25259, 75777, 285251, 855753, 3708263, 8272279, 11124789, 19111817, 24816837, 57335451, 107539627, 248453621, 322618881, 554242693, 745360863, 1662728079, 7205155009, 21615465027]

約数ペア:

[(1, 21615465027), (3, 7205155009), (13, 1662728079), (29, 745360863), (39, 554242693), (67, 322618881), (87, 248453621), (201, 107539627), (377, 57335451), (871, 24816837), (1131, 19111817), (1943, 11124789), (2613, 8272279), (5829, 3708263), (25259, 855753), (75777, 285251)]