17980215

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{108971}}^1$

素因数の和:108990

約数の個数: 16

約数和(自身を含む): 31383936

約数和(自身を除く): 13403721

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 108971, 326913, 544855, 1198681, 1634565, 3596043, 5993405, 17980215]

約数ペア:

[(1, 17980215), (3, 5993405), (5, 3596043), (11, 1634565), (15, 1198681), (33, 544855), (55, 326913), (165, 108971)]