18860565

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{1999}}^1$

素因数の和:2061

約数の個数: 32

約数和(自身を含む): 32832000

約数和(自身を除く): 13971435

約数列:

[1, 3, 5, 15, 17, 37, 51, 85, 111, 185, 255, 555, 629, 1887, 1999, 3145, 5997, 9435, 9995, 29985, 33983, 73963, 101949, 169915, 221889, 369815, 509745, 1109445, 1257371, 3772113, 6286855, 18860565]

約数ペア:

[(1, 18860565), (3, 6286855), (5, 3772113), (15, 1257371), (17, 1109445), (37, 509745), (51, 369815), (85, 221889), (111, 169915), (185, 101949), (255, 73963), (555, 33983), (629, 29985), (1887, 9995), (1999, 9435), (3145, 5997)]