21696668

素因数分解:

$2^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{7109}}^1$

素因数の和:7229

約数の個数: 24

約数和(自身を含む): 43797600

約数和(自身を除く): 22100932

約数列:

[1, 2, 4, 7, 14, 28, 109, 218, 436, 763, 1526, 3052, 7109, 14218, 28436, 49763, 99526, 199052, 774881, 1549762, 3099524, 5424167, 10848334, 21696668]

約数ペア:

[(1, 21696668), (2, 10848334), (4, 5424167), (7, 3099524), (14, 1549762), (28, 774881), (109, 199052), (218, 99526), (436, 49763), (763, 28436), (1526, 14218), (3052, 7109)]