20218638

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{2711}}^1$

素因数の和:2840

約数の個数: 32

約数和(自身を含む): 44520192

約数和(自身を除く): 24301554

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 113, 226, 339, 678, 1243, 2486, 2711, 3729, 5422, 7458, 8133, 16266, 29821, 59642, 89463, 178926, 306343, 612686, 919029, 1838058, 3369773, 6739546, 10109319, 20218638]

約数ペア:

[(1, 20218638), (2, 10109319), (3, 6739546), (6, 3369773), (11, 1838058), (22, 919029), (33, 612686), (66, 306343), (113, 178926), (226, 89463), (339, 59642), (678, 29821), (1243, 16266), (2486, 8133), (2711, 7458), (3729, 5422)]