20873670489

素因数分解:

$3^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{53639}}^1$

素因数の和:53755

約数の個数: 64

約数和(自身を含む): 37075968000

約数和(自身を除く): 16202297511

約数列:

[1, 3, 7, 9, 21, 27, 29, 63, 71, 87, 189, 203, 213, 261, 497, 609, 639, 783, 1491, 1827, 1917, 2059, 4473, 5481, 6177, 13419, 14413, 18531, 43239, 53639, 55593, 129717, 160917, 375473, 389151, 482751, 1126419, 1448253, 1555531, 3379257, 3808369, 4666593, 10137771, 10888717, 11425107, 13999779, 26658583, 32666151, 34275321, 41999337, 79975749, 97998453, 102825963, 110442701, 239927247, 293995359, 331328103, 719781741, 773098907, 993984309, 2319296721, 2981952927, 6957890163, 20873670489]

約数ペア:

[(1, 20873670489), (3, 6957890163), (7, 2981952927), (9, 2319296721), (21, 993984309), (27, 773098907), (29, 719781741), (63, 331328103), (71, 293995359), (87, 239927247), (189, 110442701), (203, 102825963), (213, 97998453), (261, 79975749), (497, 41999337), (609, 34275321), (639, 32666151), (783, 26658583), (1491, 13999779), (1827, 11425107), (1917, 10888717), (2059, 10137771), (4473, 4666593), (5481, 3808369), (6177, 3379257), (13419, 1555531), (14413, 1448253), (18531, 1126419), (43239, 482751), (53639, 389151), (55593, 375473), (129717, 160917)]