201631257

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{3803}}^1$

素因数の和:3989

約数の個数: 24

約数和(自身を含む): 300272544

約数和(自身を除く): 98641287

約数列:

[1, 3, 9, 43, 129, 137, 387, 411, 1233, 3803, 5891, 11409, 17673, 34227, 53019, 163529, 490587, 521011, 1471761, 1563033, 4689099, 22403473, 67210419, 201631257]

約数ペア:

[(1, 201631257), (3, 67210419), (9, 22403473), (43, 4689099), (129, 1563033), (137, 1471761), (387, 521011), (411, 490587), (1233, 163529), (3803, 53019), (5891, 34227), (11409, 17673)]