647427249

素因数分解:

$3^4\times 7^4\times {\mathrm{3329}}^1$

素因数の和:3369

約数の個数: 50

約数和(自身を含む): 1128606930

約数和(自身を除く): 481179681

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 343, 441, 567, 1029, 1323, 2401, 3087, 3329, 3969, 7203, 9261, 9987, 21609, 23303, 27783, 29961, 64827, 69909, 89883, 163121, 194481, 209727, 269649, 489363, 629181, 1141847, 1468089, 1887543, 3425541, 4404267, 7992929, 10276623, 13212801, 23978787, 30829869, 71936361, 92489607, 215809083, 647427249]

約数ペア:

[(1, 647427249), (3, 215809083), (7, 92489607), (9, 71936361), (21, 30829869), (27, 23978787), (49, 13212801), (63, 10276623), (81, 7992929), (147, 4404267), (189, 3425541), (343, 1887543), (441, 1468089), (567, 1141847), (1029, 629181), (1323, 489363), (2401, 269649), (3087, 209727), (3329, 194481), (3969, 163121), (7203, 89883), (9261, 69909), (9987, 64827), (21609, 29961), (23303, 27783)]