21855988

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{6451}}^1$

素因数の和:6484

約数の個数: 36

約数和(自身を含む): 48054496

約数和(自身を除く): 26198508

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 121, 154, 242, 308, 484, 847, 1694, 3388, 6451, 12902, 25804, 45157, 70961, 90314, 141922, 180628, 283844, 496727, 780571, 993454, 1561142, 1986908, 3122284, 5463997, 10927994, 21855988]

約数ペア:

[(1, 21855988), (2, 10927994), (4, 5463997), (7, 3122284), (11, 1986908), (14, 1561142), (22, 993454), (28, 780571), (44, 496727), (77, 283844), (121, 180628), (154, 141922), (242, 90314), (308, 70961), (484, 45157), (847, 25804), (1694, 12902), (3388, 6451)]