21799377

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{1987}}^1$

素因数の和:2069

約数の個数: 24

約数和(自身を含む): 33493824

約数和(自身を除く): 11694447

約数列:

[1, 3, 9, 23, 53, 69, 159, 207, 477, 1219, 1987, 3657, 5961, 10971, 17883, 45701, 105311, 137103, 315933, 411309, 947799, 2422153, 7266459, 21799377]

約数ペア:

[(1, 21799377), (3, 7266459), (9, 2422153), (23, 947799), (53, 411309), (69, 315933), (159, 137103), (207, 105311), (477, 45701), (1219, 17883), (1987, 10971), (3657, 5961)]