21993615

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{69821}}^1$

素因数の和:69839

約数の個数: 24

約数和(自身を含む): 43568928

約数和(自身を除く): 21575313

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 69821, 209463, 349105, 488747, 628389, 1047315, 1466241, 2443735, 3141945, 4398723, 7331205, 21993615]

約数ペア:

[(1, 21993615), (3, 7331205), (5, 4398723), (7, 3141945), (9, 2443735), (15, 1466241), (21, 1047315), (35, 628389), (45, 488747), (63, 349105), (105, 209463), (315, 69821)]