31881609

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{229}}^1\times {\mathrm{499}}^1$

素因数の和:765

約数の個数: 24

約数和(自身を含む): 47840000

約数和(自身を除く): 15958391

約数列:

[1, 3, 9, 31, 93, 229, 279, 499, 687, 1497, 2061, 4491, 7099, 15469, 21297, 46407, 63891, 114271, 139221, 342813, 1028439, 3542401, 10627203, 31881609]

約数ペア:

[(1, 31881609), (3, 10627203), (9, 3542401), (31, 1028439), (93, 342813), (229, 139221), (279, 114271), (499, 63891), (687, 46407), (1497, 21297), (2061, 15469), (4491, 7099)]