20512971378

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{26502547}}^1$

素因数の和:26502598

約数の個数: 24

約数和(自身を含む): 45478372368

約数和(自身を除く): 24965400990

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 129, 258, 387, 774, 26502547, 53005094, 79507641, 159015282, 238522923, 477045846, 1139609521, 2279219042, 3418828563, 6837657126, 10256485689, 20512971378]

約数ペア:

[(1, 20512971378), (2, 10256485689), (3, 6837657126), (6, 3418828563), (9, 2279219042), (18, 1139609521), (43, 477045846), (86, 238522923), (129, 159015282), (258, 79507641), (387, 53005094), (774, 26502547)]