21980079

素因数分解:

$3^6\times {\mathrm{11}}^1\times {\mathrm{2741}}^1$

素因数の和:2770

約数の個数: 28

約数和(自身を含む): 35964072

約数和(自身を除く): 13983993

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 243, 297, 729, 891, 2673, 2741, 8019, 8223, 24669, 30151, 74007, 90453, 222021, 271359, 666063, 814077, 1998189, 2442231, 7326693, 21980079]

約数ペア:

[(1, 21980079), (3, 7326693), (9, 2442231), (11, 1998189), (27, 814077), (33, 666063), (81, 271359), (99, 222021), (243, 90453), (297, 74007), (729, 30151), (891, 24669), (2673, 8223), (2741, 8019)]