20903518179

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{10904287}}^1$

素因数の和:10904367

約数の個数: 16

約数和(自身を含む): 31404349440

約数和(自身を除く): 10500831261

約数列:

[1, 3, 9, 27, 71, 213, 639, 1917, 10904287, 32712861, 98138583, 294415749, 774204377, 2322613131, 6967839393, 20903518179]

約数ペア:

[(1, 20903518179), (3, 6967839393), (9, 2322613131), (27, 774204377), (71, 294415749), (213, 98138583), (639, 32712861), (1917, 10904287)]