21701372

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{70459}}^1$

素因数の和:70481

約数の個数: 24

約数和(自身を含む): 47349120

約数和(自身を除く): 25647748

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 70459, 140918, 281836, 493213, 775049, 986426, 1550098, 1972852, 3100196, 5425343, 10850686, 21701372]

約数ペア:

[(1, 21701372), (2, 10850686), (4, 5425343), (7, 3100196), (11, 1972852), (14, 1550098), (22, 986426), (28, 775049), (44, 493213), (77, 281836), (154, 140918), (308, 70459)]