28930041

素因数分解:

$3^4\times 7^2\times {\mathrm{37}}^1\times {\mathrm{197}}^1$

素因数の和:260

約数の個数: 60

約数和(自身を含む): 51893028

約数和(自身を除く): 22962987

約数列:

[1, 3, 7, 9, 21, 27, 37, 49, 63, 81, 111, 147, 189, 197, 259, 333, 441, 567, 591, 777, 999, 1323, 1379, 1773, 1813, 2331, 2997, 3969, 4137, 5319, 5439, 6993, 7289, 9653, 12411, 15957, 16317, 20979, 21867, 28959, 37233, 48951, 51023, 65601, 86877, 111699, 146853, 153069, 196803, 260631, 357161, 459207, 590409, 781893, 1071483, 1377621, 3214449, 4132863, 9643347, 28930041]

約数ペア:

[(1, 28930041), (3, 9643347), (7, 4132863), (9, 3214449), (21, 1377621), (27, 1071483), (37, 781893), (49, 590409), (63, 459207), (81, 357161), (111, 260631), (147, 196803), (189, 153069), (197, 146853), (259, 111699), (333, 86877), (441, 65601), (567, 51023), (591, 48951), (777, 37233), (999, 28959), (1323, 21867), (1379, 20979), (1773, 16317), (1813, 15957), (2331, 12411), (2997, 9653), (3969, 7289), (4137, 6993), (5319, 5439)]