390597459

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{661}}^1\times {\mathrm{1481}}^1$

素因数の和:2171

約数の個数: 32

約数和(自身を含む): 627893760

約数和(自身を除く): 237296301

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 661, 1481, 1983, 4443, 4627, 10367, 12559, 13881, 28139, 31101, 37677, 84417, 87913, 196973, 263739, 590919, 978941, 2936823, 6852587, 18599879, 20557761, 55799637, 130199153, 390597459]

約数ペア:

[(1, 390597459), (3, 130199153), (7, 55799637), (19, 20557761), (21, 18599879), (57, 6852587), (133, 2936823), (399, 978941), (661, 590919), (1481, 263739), (1983, 196973), (4443, 87913), (4627, 84417), (10367, 37677), (12559, 31101), (13881, 28139)]