28204011

素因数分解:

$3^3\times {\mathrm{11}}^2\times {\mathrm{89}}^1\times {\mathrm{97}}^1$

素因数の和:217

約数の個数: 48

約数和(自身を含む): 46922400

約数和(自身を除く): 18718389

約数列:

[1, 3, 9, 11, 27, 33, 89, 97, 99, 121, 267, 291, 297, 363, 801, 873, 979, 1067, 1089, 2403, 2619, 2937, 3201, 3267, 8633, 8811, 9603, 10769, 11737, 25899, 26433, 28809, 32307, 35211, 77697, 94963, 96921, 105633, 233091, 284889, 290763, 316899, 854667, 1044593, 2564001, 3133779, 9401337, 28204011]

約数ペア:

[(1, 28204011), (3, 9401337), (9, 3133779), (11, 2564001), (27, 1044593), (33, 854667), (89, 316899), (97, 290763), (99, 284889), (121, 233091), (267, 105633), (291, 96921), (297, 94963), (363, 77697), (801, 35211), (873, 32307), (979, 28809), (1067, 26433), (1089, 25899), (2403, 11737), (2619, 10769), (2937, 9603), (3201, 8811), (3267, 8633)]