21177543

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1\times {\mathrm{907}}^1$

素因数の和:1134

約数の個数: 16

約数和(自身を含む): 29085056

約数和(自身を除く): 7907513

約数列:

[1, 3, 43, 129, 181, 543, 907, 2721, 7783, 23349, 39001, 117003, 164167, 492501, 7059181, 21177543]

約数ペア:

[(1, 21177543), (3, 7059181), (43, 492501), (129, 164167), (181, 117003), (543, 39001), (907, 23349), (2721, 7783)]