320787957

素因数分解:

$3^1\times 7^2\times {\mathrm{601}}^1\times {\mathrm{3631}}^1$

素因数の和:4249

約数の個数: 24

約数和(自身を含む): 498513792

約数和(自身を除く): 177725835

約数列:

[1, 3, 7, 21, 49, 147, 601, 1803, 3631, 4207, 10893, 12621, 25417, 29449, 76251, 88347, 177919, 533757, 2182231, 6546693, 15275617, 45826851, 106929319, 320787957]

約数ペア:

[(1, 320787957), (3, 106929319), (7, 45826851), (21, 15275617), (49, 6546693), (147, 2182231), (601, 533757), (1803, 177919), (3631, 88347), (4207, 76251), (10893, 29449), (12621, 25417)]