19780942

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1\times {\mathrm{1619}}^1$

素因数の和:1811

約数の個数: 16

約数和(自身を含む): 30618000

約数和(自身を除く): 10837058

約数列:

[1, 2, 41, 82, 149, 298, 1619, 3238, 6109, 12218, 66379, 132758, 241231, 482462, 9890471, 19780942]

約数ペア:

[(1, 19780942), (2, 9890471), (41, 482462), (82, 241231), (149, 132758), (298, 66379), (1619, 12218), (3238, 6109)]