20486505

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3389}}^1$

素因数の和:3441

約数の個数: 32

約数和(自身を含む): 36449280

約数和(自身を除く): 15962775

約数列:

[1, 3, 5, 13, 15, 31, 39, 65, 93, 155, 195, 403, 465, 1209, 2015, 3389, 6045, 10167, 16945, 44057, 50835, 105059, 132171, 220285, 315177, 525295, 660855, 1365767, 1575885, 4097301, 6828835, 20486505]

約数ペア:

[(1, 20486505), (3, 6828835), (5, 4097301), (13, 1575885), (15, 1365767), (31, 660855), (39, 525295), (65, 315177), (93, 220285), (155, 132171), (195, 105059), (403, 50835), (465, 44057), (1209, 16945), (2015, 10167), (3389, 6045)]