21964100

素因数分解:

$2^2\times 5^2\times {\mathrm{239}}^1\times {\mathrm{919}}^1$

素因数の和:1172

約数の個数: 36

約数和(自身を含む): 47913600

約数和(自身を除く): 25949500

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 239, 478, 919, 956, 1195, 1838, 2390, 3676, 4595, 4780, 5975, 9190, 11950, 18380, 22975, 23900, 45950, 91900, 219641, 439282, 878564, 1098205, 2196410, 4392820, 5491025, 10982050, 21964100]

約数ペア:

[(1, 21964100), (2, 10982050), (4, 5491025), (5, 4392820), (10, 2196410), (20, 1098205), (25, 878564), (50, 439282), (100, 219641), (239, 91900), (478, 45950), (919, 23900), (956, 22975), (1195, 18380), (1838, 11950), (2390, 9190), (3676, 5975), (4595, 4780)]