17958928

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{86341}}^1$

素因数の和:86362

約数の個数: 20

約数和(自身を含む): 37472428

約数和(自身を除く): 19513500

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 86341, 172682, 345364, 690728, 1122433, 1381456, 2244866, 4489732, 8979464, 17958928]

約数ペア:

[(1, 17958928), (2, 8979464), (4, 4489732), (8, 2244866), (13, 1381456), (16, 1122433), (26, 690728), (52, 345364), (104, 172682), (208, 86341)]