20090031

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{8731}}^1$

素因数の和:8806

約数の個数: 16

約数和(自身を含む): 29339520

約数和(自身を除く): 9249489

約数列:

[1, 3, 13, 39, 59, 177, 767, 2301, 8731, 26193, 113503, 340509, 515129, 1545387, 6696677, 20090031]

約数ペア:

[(1, 20090031), (3, 6696677), (13, 1545387), (39, 515129), (59, 340509), (177, 113503), (767, 26193), (2301, 8731)]