21497883

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{263}}^1\times {\mathrm{2477}}^1$

素因数の和:2754

約数の個数: 16

約数和(自身を含む): 31401216

約数和(自身を除く): 9903333

約数列:

[1, 3, 11, 33, 263, 789, 2477, 2893, 7431, 8679, 27247, 81741, 651451, 1954353, 7165961, 21497883]

約数ペア:

[(1, 21497883), (3, 7165961), (11, 1954353), (33, 651451), (263, 81741), (789, 27247), (2477, 8679), (2893, 7431)]