251069847

素因数分解:

$3^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{271}}^1\times {\mathrm{281}}^1$

素因数の和:719

約数の個数: 32

約数和(自身を含む): 387815424

約数和(自身を除く): 136745577

約数列:

[1, 3, 7, 21, 157, 271, 281, 471, 813, 843, 1099, 1897, 1967, 3297, 5691, 5901, 42547, 44117, 76151, 127641, 132351, 228453, 297829, 308819, 533057, 893487, 926457, 1599171, 11955707, 35867121, 83689949, 251069847]

約数ペア:

[(1, 251069847), (3, 83689949), (7, 35867121), (21, 11955707), (157, 1599171), (271, 926457), (281, 893487), (471, 533057), (813, 308819), (843, 297829), (1099, 228453), (1897, 132351), (1967, 127641), (3297, 76151), (5691, 44117), (5901, 42547)]