21034890

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{25969}}^1$

素因数の和:25988

約数の個数: 40

約数和(自身を含む): 56562660

約数和(自身を除く): 35527770

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 810, 25969, 51938, 77907, 129845, 155814, 233721, 259690, 389535, 467442, 701163, 779070, 1168605, 1402326, 2103489, 2337210, 3505815, 4206978, 7011630, 10517445, 21034890]

約数ペア:

[(1, 21034890), (2, 10517445), (3, 7011630), (5, 4206978), (6, 3505815), (9, 2337210), (10, 2103489), (15, 1402326), (18, 1168605), (27, 779070), (30, 701163), (45, 467442), (54, 389535), (81, 259690), (90, 233721), (135, 155814), (162, 129845), (270, 77907), (405, 51938), (810, 25969)]