21386394

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{27631}}^1$

素因数の和:27682

約数の個数: 24

約数和(自身を含む): 47416512

約数和(自身を除く): 26030118

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 129, 258, 387, 774, 27631, 55262, 82893, 165786, 248679, 497358, 1188133, 2376266, 3564399, 7128798, 10693197, 21386394]

約数ペア:

[(1, 21386394), (2, 10693197), (3, 7128798), (6, 3564399), (9, 2376266), (18, 1188133), (43, 497358), (86, 248679), (129, 165786), (258, 82893), (387, 55262), (774, 27631)]