20497035

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{409}}^1$

素因数の和:687

約数の個数: 32

約数和(自身を含む): 35542080

約数和(自身を除く): 15045045

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 257, 409, 771, 1227, 1285, 2045, 3341, 3855, 5317, 6135, 10023, 15951, 16705, 26585, 50115, 79755, 105113, 315339, 525565, 1366469, 1576695, 4099407, 6832345, 20497035]

約数ペア:

[(1, 20497035), (3, 6832345), (5, 4099407), (13, 1576695), (15, 1366469), (39, 525565), (65, 315339), (195, 105113), (257, 79755), (409, 50115), (771, 26585), (1227, 16705), (1285, 15951), (2045, 10023), (3341, 6135), (3855, 5317)]