18292071

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{431}}^1$

素因数の和:531

約数の個数: 32

約数和(自身を含む): 29196288

約数和(自身を除く): 10904217

約数列:

[1, 3, 7, 21, 43, 47, 129, 141, 301, 329, 431, 903, 987, 1293, 2021, 3017, 6063, 9051, 14147, 18533, 20257, 42441, 55599, 60771, 129731, 141799, 389193, 425397, 871051, 2613153, 6097357, 18292071]

約数ペア:

[(1, 18292071), (3, 6097357), (7, 2613153), (21, 871051), (43, 425397), (47, 389193), (129, 141799), (141, 129731), (301, 60771), (329, 55599), (431, 42441), (903, 20257), (987, 18533), (1293, 14147), (2021, 9051), (3017, 6063)]