31945431

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{2081}}^1$

素因数の和:2151

約数の個数: 32

約数和(自身を含む): 52766208

約数和(自身を除く): 20820777

約数列:

[1, 3, 7, 17, 21, 43, 51, 119, 129, 301, 357, 731, 903, 2081, 2193, 5117, 6243, 14567, 15351, 35377, 43701, 89483, 106131, 247639, 268449, 626381, 742917, 1521211, 1879143, 4563633, 10648477, 31945431]

約数ペア:

[(1, 31945431), (3, 10648477), (7, 4563633), (17, 1879143), (21, 1521211), (43, 742917), (51, 626381), (119, 268449), (129, 247639), (301, 106131), (357, 89483), (731, 43701), (903, 35377), (2081, 15351), (2193, 14567), (5117, 6243)]