18740619

素因数分解:

$3^3\times {\mathrm{157}}^1\times {\mathrm{4421}}^1$

素因数の和:4587

約数の個数: 16

約数和(自身を含む): 27947040

約数和(自身を除く): 9206421

約数列:

[1, 3, 9, 27, 157, 471, 1413, 4239, 4421, 13263, 39789, 119367, 694097, 2082291, 6246873, 18740619]

約数ペア:

[(1, 18740619), (3, 6246873), (9, 2082291), (27, 694097), (157, 119367), (471, 39789), (1413, 13263), (4239, 4421)]