20890611

素因数分解:

$3^2\times 7^2\times {\mathrm{127}}^1\times {\mathrm{373}}^1$

素因数の和:520

約数の個数: 36

約数和(自身を含む): 35473152

約数和(自身を除く): 14582541

約数列:

[1, 3, 7, 9, 21, 49, 63, 127, 147, 373, 381, 441, 889, 1119, 1143, 2611, 2667, 3357, 6223, 7833, 8001, 18277, 18669, 23499, 47371, 54831, 56007, 142113, 164493, 331597, 426339, 994791, 2321179, 2984373, 6963537, 20890611]

約数ペア:

[(1, 20890611), (3, 6963537), (7, 2984373), (9, 2321179), (21, 994791), (49, 426339), (63, 331597), (127, 164493), (147, 142113), (373, 56007), (381, 54831), (441, 47371), (889, 23499), (1119, 18669), (1143, 18277), (2611, 8001), (2667, 7833), (3357, 6223)]