21903970

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{1861}}^1$

素因数の和:1986

約数の個数: 32

約数和(自身を含む): 43436736

約数和(自身を除く): 21532766

約数列:

[1, 2, 5, 10, 11, 22, 55, 107, 110, 214, 535, 1070, 1177, 1861, 2354, 3722, 5885, 9305, 11770, 18610, 20471, 40942, 102355, 199127, 204710, 398254, 995635, 1991270, 2190397, 4380794, 10951985, 21903970]

約数ペア:

[(1, 21903970), (2, 10951985), (5, 4380794), (10, 2190397), (11, 1991270), (22, 995635), (55, 398254), (107, 204710), (110, 199127), (214, 102355), (535, 40942), (1070, 20471), (1177, 18610), (1861, 11770), (2354, 9305), (3722, 5885)]