74973969

素因数分解:

$3^2\times 7^3\times {\mathrm{149}}^1\times {\mathrm{163}}^1$

素因数の和:339

約数の個数: 48

約数和(自身を含む): 127920000

約数和(自身を除く): 52946031

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 149, 163, 343, 441, 447, 489, 1029, 1043, 1141, 1341, 1467, 3087, 3129, 3423, 7301, 7987, 9387, 10269, 21903, 23961, 24287, 51107, 55909, 65709, 71883, 72861, 153321, 167727, 170009, 218583, 459963, 503181, 510027, 1190063, 1530081, 3570189, 8330441, 10710567, 24991323, 74973969]

約数ペア:

[(1, 74973969), (3, 24991323), (7, 10710567), (9, 8330441), (21, 3570189), (49, 1530081), (63, 1190063), (147, 510027), (149, 503181), (163, 459963), (343, 218583), (441, 170009), (447, 167727), (489, 153321), (1029, 72861), (1043, 71883), (1141, 65709), (1341, 55909), (1467, 51107), (3087, 24287), (3129, 23961), (3423, 21903), (7301, 10269), (7987, 9387)]