20078421

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1033}}^1$

素因数の和:1097

約数の個数: 32

約数和(自身を含む): 31764480

約数和(自身を除く): 11686059

約数列:

[1, 3, 11, 19, 31, 33, 57, 93, 209, 341, 589, 627, 1023, 1033, 1767, 3099, 6479, 11363, 19437, 19627, 32023, 34089, 58881, 96069, 215897, 352253, 608437, 647691, 1056759, 1825311, 6692807, 20078421]

約数ペア:

[(1, 20078421), (3, 6692807), (11, 1825311), (19, 1056759), (31, 647691), (33, 608437), (57, 352253), (93, 215897), (209, 96069), (341, 58881), (589, 34089), (627, 32023), (1023, 19627), (1033, 19437), (1767, 11363), (3099, 6479)]