20771829

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1$

素因数の和:159

約数の個数: 64

約数和(自身を含む): 36126720

約数和(自身を除く): 15354891

約数列:

[1, 3, 9, 13, 23, 27, 31, 39, 69, 83, 93, 117, 207, 249, 279, 299, 351, 403, 621, 713, 747, 837, 897, 1079, 1209, 1909, 2139, 2241, 2573, 2691, 3237, 3627, 5727, 6417, 7719, 8073, 9269, 9711, 10881, 17181, 19251, 23157, 24817, 27807, 29133, 33449, 51543, 59179, 69471, 74451, 83421, 100347, 177537, 223353, 250263, 301041, 532611, 670059, 769327, 903123, 1597833, 2307981, 6923943, 20771829]

約数ペア:

[(1, 20771829), (3, 6923943), (9, 2307981), (13, 1597833), (23, 903123), (27, 769327), (31, 670059), (39, 532611), (69, 301041), (83, 250263), (93, 223353), (117, 177537), (207, 100347), (249, 83421), (279, 74451), (299, 69471), (351, 59179), (403, 51543), (621, 33449), (713, 29133), (747, 27807), (837, 24817), (897, 23157), (1079, 19251), (1209, 17181), (1909, 10881), (2139, 9711), (2241, 9269), (2573, 8073), (2691, 7719), (3237, 6417), (3627, 5727)]