28356237

素因数分解:

$3^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{3847}}^1$

素因数の和:3879

約数の個数: 40

約数和(自身を含む): 52148096

約数和(自身を除く): 23791859

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 81, 91, 117, 189, 273, 351, 567, 819, 1053, 2457, 3847, 7371, 11541, 26929, 34623, 50011, 80787, 103869, 150033, 242361, 311607, 350077, 450099, 727083, 1050231, 1350297, 2181249, 3150693, 4050891, 9452079, 28356237]

約数ペア:

[(1, 28356237), (3, 9452079), (7, 4050891), (9, 3150693), (13, 2181249), (21, 1350297), (27, 1050231), (39, 727083), (63, 450099), (81, 350077), (91, 311607), (117, 242361), (189, 150033), (273, 103869), (351, 80787), (567, 50011), (819, 34623), (1053, 26929), (2457, 11541), (3847, 7371)]