31959711

素因数分解:

$3^3\times 7^4\times {\mathrm{17}}^1\times {\mathrm{29}}^1$

素因数の和:83

約数の個数: 80

約数和(自身を含む): 60501600

約数和(自身を除く): 28541889

約数列:

[1, 3, 7, 9, 17, 21, 27, 29, 49, 51, 63, 87, 119, 147, 153, 189, 203, 261, 343, 357, 441, 459, 493, 609, 783, 833, 1029, 1071, 1323, 1421, 1479, 1827, 2401, 2499, 3087, 3213, 3451, 4263, 4437, 5481, 5831, 7203, 7497, 9261, 9947, 10353, 12789, 13311, 17493, 21609, 22491, 24157, 29841, 31059, 38367, 40817, 52479, 64827, 69629, 72471, 89523, 93177, 122451, 157437, 169099, 208887, 217413, 268569, 367353, 507297, 626661, 652239, 1102059, 1183693, 1521891, 1879983, 3551079, 4565673, 10653237, 31959711]

約数ペア:

[(1, 31959711), (3, 10653237), (7, 4565673), (9, 3551079), (17, 1879983), (21, 1521891), (27, 1183693), (29, 1102059), (49, 652239), (51, 626661), (63, 507297), (87, 367353), (119, 268569), (147, 217413), (153, 208887), (189, 169099), (203, 157437), (261, 122451), (343, 93177), (357, 89523), (441, 72471), (459, 69629), (493, 64827), (609, 52479), (783, 40817), (833, 38367), (1029, 31059), (1071, 29841), (1323, 24157), (1421, 22491), (1479, 21609), (1827, 17493), (2401, 13311), (2499, 12789), (3087, 10353), (3213, 9947), (3451, 9261), (4263, 7497), (4437, 7203), (5481, 5831)]