721640103

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{146407}}^1$

素因数の和:146494

約数の個数: 16

約数和(自身を含む): 1011972096

約数和(自身を除く): 290331993

約数列:

[1, 3, 31, 53, 93, 159, 1643, 4929, 146407, 439221, 4538617, 7759571, 13615851, 23278713, 240546701, 721640103]

約数ペア:

[(1, 721640103), (3, 240546701), (31, 23278713), (53, 13615851), (93, 7759571), (159, 4538617), (1643, 439221), (4929, 146407)]