21359300

素因数分解:

$2^2\times 5^2\times {\mathrm{167}}^1\times {\mathrm{1279}}^1$

素因数の和:1460

約数の個数: 36

約数和(自身を含む): 46663680

約数和(自身を除く): 25304380

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 167, 334, 668, 835, 1279, 1670, 2558, 3340, 4175, 5116, 6395, 8350, 12790, 16700, 25580, 31975, 63950, 127900, 213593, 427186, 854372, 1067965, 2135930, 4271860, 5339825, 10679650, 21359300]

約数ペア:

[(1, 21359300), (2, 10679650), (4, 5339825), (5, 4271860), (10, 2135930), (20, 1067965), (25, 854372), (50, 427186), (100, 213593), (167, 127900), (334, 63950), (668, 31975), (835, 25580), (1279, 16700), (1670, 12790), (2558, 8350), (3340, 6395), (4175, 5116)]