21404421

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{1951}}^1$

素因数の和:2033

約数の個数: 24

約数和(自身を含む): 32887296

約数和(自身を除く): 11482875

約数列:

[1, 3, 9, 23, 53, 69, 159, 207, 477, 1219, 1951, 3657, 5853, 10971, 17559, 44873, 103403, 134619, 310209, 403857, 930627, 2378269, 7134807, 21404421]

約数ペア:

[(1, 21404421), (3, 7134807), (9, 2378269), (23, 930627), (53, 403857), (69, 310209), (159, 134619), (207, 103403), (477, 44873), (1219, 17559), (1951, 10971), (3657, 5853)]