18719805

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{5647}}^1$

素因数の和:5685

約数の個数: 32

約数和(自身を含む): 34159104

約数和(自身を除く): 15439299

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 65, 85, 195, 221, 255, 663, 1105, 3315, 5647, 16941, 28235, 73411, 84705, 95999, 220233, 287997, 367055, 479995, 1101165, 1247987, 1439985, 3743961, 6239935, 18719805]

約数ペア:

[(1, 18719805), (3, 6239935), (5, 3743961), (13, 1439985), (15, 1247987), (17, 1101165), (39, 479995), (51, 367055), (65, 287997), (85, 220233), (195, 95999), (221, 84705), (255, 73411), (663, 28235), (1105, 16941), (3315, 5647)]