20161197

素因数分解:

$3^3\times 7^4\times {\mathrm{311}}^1$

素因数の和:348

約数の個数: 40

約数和(自身を含む): 34956480

約数和(自身を除く): 14795283

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 311, 343, 441, 933, 1029, 1323, 2177, 2401, 2799, 3087, 6531, 7203, 8397, 9261, 15239, 19593, 21609, 45717, 58779, 64827, 106673, 137151, 320019, 411453, 746711, 960057, 2240133, 2880171, 6720399, 20161197]

約数ペア:

[(1, 20161197), (3, 6720399), (7, 2880171), (9, 2240133), (21, 960057), (27, 746711), (49, 411453), (63, 320019), (147, 137151), (189, 106673), (311, 64827), (343, 58779), (441, 45717), (933, 21609), (1029, 19593), (1323, 15239), (2177, 9261), (2401, 8397), (2799, 7203), (3087, 6531)]