19974549

素因数分解:

$3^1\times 7^1\times {\mathrm{607}}^1\times {\mathrm{1567}}^1$

素因数の和:2184

約数の個数: 16

約数和(自身を含む): 30507008

約数和(自身を除く): 10532459

約数列:

[1, 3, 7, 21, 607, 1567, 1821, 4249, 4701, 10969, 12747, 32907, 951169, 2853507, 6658183, 19974549]

約数ペア:

[(1, 19974549), (3, 6658183), (7, 2853507), (21, 951169), (607, 32907), (1567, 12747), (1821, 10969), (4249, 4701)]