20914064

素因数分解:

$2^4\times {\mathrm{991}}^1\times {\mathrm{1319}}^1$

素因数の和:2318

約数の個数: 20

約数和(自身を含む): 40592640

約数和(自身を除く): 19678576

約数列:

[1, 2, 4, 8, 16, 991, 1319, 1982, 2638, 3964, 5276, 7928, 10552, 15856, 21104, 1307129, 2614258, 5228516, 10457032, 20914064]

約数ペア:

[(1, 20914064), (2, 10457032), (4, 5228516), (8, 2614258), (16, 1307129), (991, 21104), (1319, 15856), (1982, 10552), (2638, 7928), (3964, 5276)]