21450213

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{193}}^1\times {\mathrm{233}}^1$

素因数の和:485

約数の個数: 24

約数和(自身を含む): 31867992

約数和(自身を除く): 10417779

約数列:

[1, 3, 9, 53, 159, 193, 233, 477, 579, 699, 1737, 2097, 10229, 12349, 30687, 37047, 44969, 92061, 111141, 134907, 404721, 2383357, 7150071, 21450213]

約数ペア:

[(1, 21450213), (3, 7150071), (9, 2383357), (53, 404721), (159, 134907), (193, 111141), (233, 92061), (477, 44969), (579, 37047), (699, 30687), (1737, 12349), (2097, 10229)]