1991238039

素因数分解:

$3^3\times 7^2\times {\mathrm{1505093}}^1$

素因数の和:1505116

約数の個数: 24

約数和(自身を含む): 3431614320

約数和(自身を除く): 1440376281

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 1505093, 4515279, 10535651, 13545837, 31606953, 40637511, 73749557, 94820859, 221248671, 284462577, 663746013, 1991238039]

約数ペア:

[(1, 1991238039), (3, 663746013), (7, 284462577), (9, 221248671), (21, 94820859), (27, 73749557), (49, 40637511), (63, 31606953), (147, 13545837), (189, 10535651), (441, 4515279), (1323, 1505093)]