18638439

素因数分解:

$3^1\times {\mathrm{101}}^1\times {\mathrm{137}}^1\times {\mathrm{449}}^1$

素因数の和:690

約数の個数: 16

約数和(自身を含む): 25336800

約数和(自身を除く): 6698361

約数列:

[1, 3, 101, 137, 303, 411, 449, 1347, 13837, 41511, 45349, 61513, 136047, 184539, 6212813, 18638439]

約数ペア:

[(1, 18638439), (3, 6212813), (101, 184539), (137, 136047), (303, 61513), (411, 45349), (449, 41511), (1347, 13837)]