21061518

素因数分解:

$2^1\times 3^1\times {\mathrm{631}}^1\times {\mathrm{5563}}^1$

素因数の和:6199

約数の個数: 16

約数和(自身を含む): 42197376

約数和(自身を除く): 21135858

約数列:

[1, 2, 3, 6, 631, 1262, 1893, 3786, 5563, 11126, 16689, 33378, 3510253, 7020506, 10530759, 21061518]

約数ペア:

[(1, 21061518), (2, 10530759), (3, 7020506), (6, 3510253), (631, 33378), (1262, 16689), (1893, 11126), (3786, 5563)]