19899464

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{191341}}^1$

素因数の和:191360

約数の個数: 16

約数和(自身を含む): 40181820

約数和(自身を除く): 20282356

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 191341, 382682, 765364, 1530728, 2487433, 4974866, 9949732, 19899464]

約数ペア:

[(1, 19899464), (2, 9949732), (4, 4974866), (8, 2487433), (13, 1530728), (26, 765364), (52, 382682), (104, 191341)]