490420007

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{276917}}^1$

素因数の和:276958

約数の個数: 16

約数和(自身を含む): 638019072

約数和(自身を除く): 147599065

約数列:

[1, 7, 11, 23, 77, 161, 253, 1771, 276917, 1938419, 3046087, 6369091, 21322609, 44583637, 70060001, 490420007]

約数ペア:

[(1, 490420007), (7, 70060001), (11, 44583637), (23, 21322609), (77, 6369091), (161, 3046087), (253, 1938419), (1771, 276917)]