288256521

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1\times {\mathrm{1877}}^1$

素因数の和:2061

約数の個数: 32

約数和(自身を含む): 449998848

約数和(自身を除く): 161742327

約数列:

[1, 3, 7, 21, 71, 103, 213, 309, 497, 721, 1491, 1877, 2163, 5631, 7313, 13139, 21939, 39417, 51191, 133267, 153573, 193331, 399801, 579993, 932869, 1353317, 2798607, 4059951, 13726501, 41179503, 96085507, 288256521]

約数ペア:

[(1, 288256521), (3, 96085507), (7, 41179503), (21, 13726501), (71, 4059951), (103, 2798607), (213, 1353317), (309, 932869), (497, 579993), (721, 399801), (1491, 193331), (1877, 153573), (2163, 133267), (5631, 51191), (7313, 39417), (13139, 21939)]