20404878

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{261601}}^1$

素因数の和:261619

約数の個数: 16

約数和(自身を含む): 43949136

約数和(自身を除く): 23544258

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 261601, 523202, 784803, 1569606, 3400813, 6801626, 10202439, 20404878]

約数ペア:

[(1, 20404878), (2, 10202439), (3, 6801626), (6, 3400813), (13, 1569606), (26, 784803), (39, 523202), (78, 261601)]