20353845

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{4201}}^1$

素因数の和:4245

約数の個数: 32

約数和(自身を含む): 36305280

約数和(自身を除く): 15951435

約数列:

[1, 3, 5, 15, 17, 19, 51, 57, 85, 95, 255, 285, 323, 969, 1615, 4201, 4845, 12603, 21005, 63015, 71417, 79819, 214251, 239457, 357085, 399095, 1071255, 1197285, 1356923, 4070769, 6784615, 20353845]

約数ペア:

[(1, 20353845), (3, 6784615), (5, 4070769), (15, 1356923), (17, 1197285), (19, 1071255), (51, 399095), (57, 357085), (85, 239457), (95, 214251), (255, 79819), (285, 71417), (323, 63015), (969, 21005), (1615, 12603), (4201, 4845)]