21877521

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{2879}}^1$

素因数の和:3048

約数の個数: 16

約数和(自身を含む): 31104000

約数和(自身を除く): 9226479

約数列:

[1, 3, 17, 51, 149, 447, 2533, 2879, 7599, 8637, 48943, 146829, 428971, 1286913, 7292507, 21877521]

約数ペア:

[(1, 21877521), (3, 7292507), (17, 1286913), (51, 428971), (149, 146829), (447, 48943), (2533, 8637), (2879, 7599)]