19400553

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{193}}^1$

素因数の和:295

約数の個数: 40

約数和(自身を含む): 31267368

約数和(自身を除く): 11866815

約数列:

[1, 3, 9, 17, 27, 51, 73, 81, 153, 193, 219, 459, 579, 657, 1241, 1377, 1737, 1971, 3281, 3723, 5211, 5913, 9843, 11169, 14089, 15633, 29529, 33507, 42267, 88587, 100521, 126801, 239513, 265761, 380403, 718539, 1141209, 2155617, 6466851, 19400553]

約数ペア:

[(1, 19400553), (3, 6466851), (9, 2155617), (17, 1141209), (27, 718539), (51, 380403), (73, 265761), (81, 239513), (153, 126801), (193, 100521), (219, 88587), (459, 42267), (579, 33507), (657, 29529), (1241, 15633), (1377, 14089), (1737, 11169), (1971, 9843), (3281, 5913), (3723, 5211)]