20787918

素因数分解:

$2^1\times 3^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{1531}}^1$

素因数の和:1640

約数の個数: 32

約数和(自身を含む): 43533312

約数和(自身を除く): 22745394

約数列:

[1, 2, 3, 6, 31, 62, 73, 93, 146, 186, 219, 438, 1531, 2263, 3062, 4526, 4593, 6789, 9186, 13578, 47461, 94922, 111763, 142383, 223526, 284766, 335289, 670578, 3464653, 6929306, 10393959, 20787918]

約数ペア:

[(1, 20787918), (2, 10393959), (3, 6929306), (6, 3464653), (31, 670578), (62, 335289), (73, 284766), (93, 223526), (146, 142383), (186, 111763), (219, 94922), (438, 47461), (1531, 13578), (2263, 9186), (3062, 6789), (4526, 4593)]