21198441

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{14939}}^1$

素因数の和:14996

約数の個数: 16

約数和(自身を含む): 31553280

約数和(自身を除く): 10354839

約数列:

[1, 3, 11, 33, 43, 129, 473, 1419, 14939, 44817, 164329, 492987, 642377, 1927131, 7066147, 21198441]

約数ペア:

[(1, 21198441), (3, 7066147), (11, 1927131), (33, 642377), (43, 492987), (129, 164329), (473, 44817), (1419, 14939)]