21713919

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{1567}}^1$

素因数の和:1750

約数の個数: 16

約数和(自身を含む): 30105600

約数和(自身を除く): 8391681

約数列:

[1, 3, 31, 93, 149, 447, 1567, 4619, 4701, 13857, 48577, 145731, 233483, 700449, 7237973, 21713919]

約数ペア:

[(1, 21713919), (3, 7237973), (31, 700449), (93, 233483), (149, 145731), (447, 48577), (1567, 13857), (4619, 4701)]