207951261

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{211}}^1\times {\mathrm{661}}^1$

素因数の和:953

約数の個数: 32

約数和(自身を含む): 323352576

約数和(自身を除く): 115401315

約数列:

[1, 3, 7, 21, 71, 211, 213, 497, 633, 661, 1477, 1491, 1983, 4431, 4627, 13881, 14981, 44943, 46931, 104867, 139471, 140793, 314601, 328517, 418413, 976297, 985551, 2928891, 9902441, 29707323, 69317087, 207951261]

約数ペア:

[(1, 207951261), (3, 69317087), (7, 29707323), (21, 9902441), (71, 2928891), (211, 985551), (213, 976297), (497, 418413), (633, 328517), (661, 314601), (1477, 140793), (1491, 139471), (1983, 104867), (4431, 46931), (4627, 44943), (13881, 14981)]