20901399

素因数分解:

$3^1\times {\mathrm{59}}^1\times {\mathrm{263}}^1\times {\mathrm{449}}^1$

素因数の和:774

約数の個数: 16

約数和(自身を含む): 28512000

約数和(自身を除く): 7610601

約数列:

[1, 3, 59, 177, 263, 449, 789, 1347, 15517, 26491, 46551, 79473, 118087, 354261, 6967133, 20901399]

約数ペア:

[(1, 20901399), (3, 6967133), (59, 354261), (177, 118087), (263, 79473), (449, 46551), (789, 26491), (1347, 15517)]