21000942

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^2\times {\mathrm{631}}^1$

素因数の和:725

約数の個数: 36

約数和(自身を含む): 46658664

約数和(自身を除く): 25657722

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 129, 258, 387, 631, 774, 1262, 1849, 1893, 3698, 3786, 5547, 5679, 11094, 11358, 16641, 27133, 33282, 54266, 81399, 162798, 244197, 488394, 1166719, 2333438, 3500157, 7000314, 10500471, 21000942]

約数ペア:

[(1, 21000942), (2, 10500471), (3, 7000314), (6, 3500157), (9, 2333438), (18, 1166719), (43, 488394), (86, 244197), (129, 162798), (258, 81399), (387, 54266), (631, 33282), (774, 27133), (1262, 16641), (1849, 11358), (1893, 11094), (3698, 5679), (3786, 5547)]