20886906

素因数分解:

$2^1\times 3^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{1109}}^1$

素因数の和:1230

約数の個数: 32

約数和(自身を含む): 43369920

約数和(自身を除く): 22483014

約数列:

[1, 2, 3, 6, 43, 73, 86, 129, 146, 219, 258, 438, 1109, 2218, 3139, 3327, 6278, 6654, 9417, 18834, 47687, 80957, 95374, 143061, 161914, 242871, 286122, 485742, 3481151, 6962302, 10443453, 20886906]

約数ペア:

[(1, 20886906), (2, 10443453), (3, 6962302), (6, 3481151), (43, 485742), (73, 286122), (86, 242871), (129, 161914), (146, 143061), (219, 95374), (258, 80957), (438, 47687), (1109, 18834), (2218, 9417), (3139, 6654), (3327, 6278)]