18989745

素因数分解:

$3^1\times 5^1\times {\mathrm{239}}^1\times {\mathrm{5297}}^1$

素因数の和:5544

約数の個数: 16

約数和(自身を含む): 30516480

約数和(自身を除く): 11526735

約数列:

[1, 3, 5, 15, 239, 717, 1195, 3585, 5297, 15891, 26485, 79455, 1265983, 3797949, 6329915, 18989745]

約数ペア:

[(1, 18989745), (3, 6329915), (5, 3797949), (15, 1265983), (239, 79455), (717, 26485), (1195, 15891), (3585, 5297)]