21468748

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{18701}}^1$

素因数の和:18753

約数の個数: 24

約数和(自身を含む): 43987104

約数和(自身を除く): 22518356

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 164, 287, 574, 1148, 18701, 37402, 74804, 130907, 261814, 523628, 766741, 1533482, 3066964, 5367187, 10734374, 21468748]

約数ペア:

[(1, 21468748), (2, 10734374), (4, 5367187), (7, 3066964), (14, 1533482), (28, 766741), (41, 523628), (82, 261814), (164, 130907), (287, 74804), (574, 37402), (1148, 18701)]