21011778

素因数分解:

$2^1\times 3^3\times {\mathrm{43}}^1\times {\mathrm{9049}}^1$

素因数の和:9103

約数の個数: 32

約数和(自身を含む): 47784000

約数和(自身を除く): 26772222

約数列:

[1, 2, 3, 6, 9, 18, 27, 43, 54, 86, 129, 258, 387, 774, 1161, 2322, 9049, 18098, 27147, 54294, 81441, 162882, 244323, 389107, 488646, 778214, 1167321, 2334642, 3501963, 7003926, 10505889, 21011778]

約数ペア:

[(1, 21011778), (2, 10505889), (3, 7003926), (6, 3501963), (9, 2334642), (18, 1167321), (27, 778214), (43, 488646), (54, 389107), (86, 244323), (129, 162882), (258, 81441), (387, 54294), (774, 27147), (1161, 18098), (2322, 9049)]