218420565

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{21701}}^1$

素因数の和:21781

約数の個数: 32

約数和(自身を含む): 387510912

約数和(自身を除く): 169090347

約数列:

[1, 3, 5, 11, 15, 33, 55, 61, 165, 183, 305, 671, 915, 2013, 3355, 10065, 21701, 65103, 108505, 238711, 325515, 716133, 1193555, 1323761, 3580665, 3971283, 6618805, 14561371, 19856415, 43684113, 72806855, 218420565]

約数ペア:

[(1, 218420565), (3, 72806855), (5, 43684113), (11, 19856415), (15, 14561371), (33, 6618805), (55, 3971283), (61, 3580665), (165, 1323761), (183, 1193555), (305, 716133), (671, 325515), (915, 238711), (2013, 108505), (3355, 65103), (10065, 21701)]