21972855

素因数分解:

$3^1\times 5^1\times {\mathrm{317}}^1\times {\mathrm{4621}}^1$

素因数の和:4946

約数の個数: 16

約数和(自身を含む): 35275104

約数和(自身を除く): 13302249

約数列:

[1, 3, 5, 15, 317, 951, 1585, 4621, 4755, 13863, 23105, 69315, 1464857, 4394571, 7324285, 21972855]

約数ペア:

[(1, 21972855), (3, 7324285), (5, 4394571), (15, 1464857), (317, 69315), (951, 23105), (1585, 13863), (4621, 4755)]