21990444

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{261791}}^1$

素因数の和:261805

約数の個数: 24

約数和(自身を含む): 58641408

約数和(自身を除く): 36650964

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 261791, 523582, 785373, 1047164, 1570746, 1832537, 3141492, 3665074, 5497611, 7330148, 10995222, 21990444]

約数ペア:

[(1, 21990444), (2, 10995222), (3, 7330148), (4, 5497611), (6, 3665074), (7, 3141492), (12, 1832537), (14, 1570746), (21, 1047164), (28, 785373), (42, 523582), (84, 261791)]