21492387

素因数分解:

$3^2\times 7^1\times {\mathrm{97}}^1\times {\mathrm{3517}}^1$

素因数の和:3627

約数の個数: 24

約数和(自身を含む): 35855456

約数和(自身を除く): 14363069

約数列:

[1, 3, 7, 9, 21, 63, 97, 291, 679, 873, 2037, 3517, 6111, 10551, 24619, 31653, 73857, 221571, 341149, 1023447, 2388043, 3070341, 7164129, 21492387]

約数ペア:

[(1, 21492387), (3, 7164129), (7, 3070341), (9, 2388043), (21, 1023447), (63, 341149), (97, 221571), (291, 73857), (679, 31653), (873, 24619), (2037, 10551), (3517, 6111)]