20853805

素因数分解:

$5^1\times 7^1\times {\mathrm{449}}^1\times {\mathrm{1327}}^1$

素因数の和:1788

約数の個数: 16

約数和(自身を含む): 28684800

約数和(自身を除く): 7830995

約数列:

[1, 5, 7, 35, 449, 1327, 2245, 3143, 6635, 9289, 15715, 46445, 595823, 2979115, 4170761, 20853805]

約数ペア:

[(1, 20853805), (5, 4170761), (7, 2979115), (35, 595823), (449, 46445), (1327, 15715), (2245, 9289), (3143, 6635)]