20307321

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{617}}^1$

素因数の和:702

約数の個数: 32

約数和(自身を含む): 32037120

約数和(自身を除く): 11729799

約数列:

[1, 3, 9, 23, 27, 53, 69, 159, 207, 477, 617, 621, 1219, 1431, 1851, 3657, 5553, 10971, 14191, 16659, 32701, 32913, 42573, 98103, 127719, 294309, 383157, 752123, 882927, 2256369, 6769107, 20307321]

約数ペア:

[(1, 20307321), (3, 6769107), (9, 2256369), (23, 882927), (27, 752123), (53, 383157), (69, 294309), (159, 127719), (207, 98103), (477, 42573), (617, 32913), (621, 32701), (1219, 16659), (1431, 14191), (1851, 10971), (3657, 5553)]