218497921

素因数分解:

${\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{149}}^1\times {\mathrm{509}}^1$

素因数の和:768

約数の個数: 16

約数和(自身を含む): 228888000

約数和(自身を除く): 10390079

約数列:

[1, 43, 67, 149, 509, 2881, 6407, 9983, 21887, 34103, 75841, 429269, 1466429, 3261163, 5081347, 218497921]

約数ペア:

[(1, 218497921), (43, 5081347), (67, 3261163), (149, 1466429), (509, 429269), (2881, 75841), (6407, 34103), (9983, 21887)]