19995315

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{4127}}^1$

素因数の和:4171

約数の個数: 32

約数和(自身を含む): 35665920

約数和(自身を除く): 15670605

約数列:

[1, 3, 5, 15, 17, 19, 51, 57, 85, 95, 255, 285, 323, 969, 1615, 4127, 4845, 12381, 20635, 61905, 70159, 78413, 210477, 235239, 350795, 392065, 1052385, 1176195, 1333021, 3999063, 6665105, 19995315]

約数ペア:

[(1, 19995315), (3, 6665105), (5, 3999063), (15, 1333021), (17, 1176195), (19, 1052385), (51, 392065), (57, 350795), (85, 235239), (95, 210477), (255, 78413), (285, 70159), (323, 61905), (969, 20635), (1615, 12381), (4127, 4845)]