21344950

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{197}}^2$

素因数の和:417

約数の個数: 36

約数和(自身を含む): 43531812

約数和(自身を除く): 22186862

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 197, 275, 394, 550, 985, 1970, 2167, 4334, 4925, 9850, 10835, 21670, 38809, 54175, 77618, 108350, 194045, 388090, 426899, 853798, 970225, 1940450, 2134495, 4268990, 10672475, 21344950]

約数ペア:

[(1, 21344950), (2, 10672475), (5, 4268990), (10, 2134495), (11, 1940450), (22, 970225), (25, 853798), (50, 426899), (55, 388090), (110, 194045), (197, 108350), (275, 77618), (394, 54175), (550, 38809), (985, 21670), (1970, 10835), (2167, 9850), (4334, 4925)]