21799587

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{349}}^1\times {\mathrm{443}}^1$

素因数の和:842

約数の個数: 16

約数和(自身を含む): 29836800

約数和(自身を除く): 8037213

約数列:

[1, 3, 47, 141, 349, 443, 1047, 1329, 16403, 20821, 49209, 62463, 154607, 463821, 7266529, 21799587]

約数ペア:

[(1, 21799587), (3, 7266529), (47, 463821), (141, 154607), (349, 62463), (443, 49209), (1047, 20821), (1329, 16403)]