21085566

素因数分解:

$2^1\times 3^1\times {\mathrm{43}}^1\times {\mathrm{81727}}^1$

素因数の和:81775

約数の個数: 16

約数和(自身を含む): 43152384

約数和(自身を除く): 22066818

約数列:

[1, 2, 3, 6, 43, 86, 129, 258, 81727, 163454, 245181, 490362, 3514261, 7028522, 10542783, 21085566]

約数ペア:

[(1, 21085566), (2, 10542783), (3, 7028522), (6, 3514261), (43, 490362), (86, 245181), (129, 163454), (258, 81727)]