251815851

素因数分解:

$3^3\times 7^3\times {\mathrm{27191}}^1$

素因数の和:27221

約数の個数: 32

約数和(自身を含む): 435072000

約数和(自身を除く): 183256149

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 343, 441, 1029, 1323, 3087, 9261, 27191, 81573, 190337, 244719, 571011, 734157, 1332359, 1713033, 3997077, 5139099, 9326513, 11991231, 27979539, 35973693, 83938617, 251815851]

約数ペア:

[(1, 251815851), (3, 83938617), (7, 35973693), (9, 27979539), (21, 11991231), (27, 9326513), (49, 5139099), (63, 3997077), (147, 1713033), (189, 1332359), (343, 734157), (441, 571011), (1029, 244719), (1323, 190337), (3087, 81573), (9261, 27191)]