19818585

素因数分解:

$3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{6203}}^1$

素因数の和:6285

約数の個数: 24

約数和(自身を含む): 34841664

約数和(自身を除く): 15023079

約数列:

[1, 3, 5, 9, 15, 45, 71, 213, 355, 639, 1065, 3195, 6203, 18609, 31015, 55827, 93045, 279135, 440413, 1321239, 2202065, 3963717, 6606195, 19818585]

約数ペア:

[(1, 19818585), (3, 6606195), (5, 3963717), (9, 2202065), (15, 1321239), (45, 440413), (71, 279135), (213, 93045), (355, 55827), (639, 31015), (1065, 18609), (3195, 6203)]