290919167

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{151}}^1\times {\mathrm{191}}^1$

素因数の和:491

約数の個数: 32

約数和(自身を含む): 369819648

約数和(自身を除く): 78900481

約数列:

[1, 7, 11, 77, 131, 151, 191, 917, 1057, 1337, 1441, 1661, 2101, 10087, 11627, 14707, 19781, 25021, 28841, 138467, 175147, 201887, 217591, 275231, 317251, 1523137, 1926617, 2220757, 3778171, 26447197, 41559881, 290919167]

約数ペア:

[(1, 290919167), (7, 41559881), (11, 26447197), (77, 3778171), (131, 2220757), (151, 1926617), (191, 1523137), (917, 317251), (1057, 275231), (1337, 217591), (1441, 201887), (1661, 175147), (2101, 138467), (10087, 28841), (11627, 25021), (14707, 19781)]