20251587

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1$

素因数の和:283

約数の個数: 32

約数和(自身を含む): 29931520

約数和(自身を除く): 9679933

約数列:

[1, 3, 19, 31, 57, 73, 93, 157, 219, 471, 589, 1387, 1767, 2263, 2983, 4161, 4867, 6789, 8949, 11461, 14601, 34383, 42997, 92473, 128991, 217759, 277419, 355291, 653277, 1065873, 6750529, 20251587]

約数ペア:

[(1, 20251587), (3, 6750529), (19, 1065873), (31, 653277), (57, 355291), (73, 277419), (93, 217759), (157, 128991), (219, 92473), (471, 42997), (589, 34383), (1387, 14601), (1767, 11461), (2263, 8949), (2983, 6789), (4161, 4867)]