18842229

素因数分解:

$3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{4903}}^1$

素因数の和:4977

約数の個数: 24

約数和(自身を含む): 31620992

約数和(自身を除く): 12778763

約数列:

[1, 3, 7, 9, 21, 61, 63, 183, 427, 549, 1281, 3843, 4903, 14709, 34321, 44127, 102963, 299083, 308889, 897249, 2093581, 2691747, 6280743, 18842229]

約数ペア:

[(1, 18842229), (3, 6280743), (7, 2691747), (9, 2093581), (21, 897249), (61, 308889), (63, 299083), (183, 102963), (427, 44127), (549, 34321), (1281, 14709), (3843, 4903)]