21172833

素因数分解:

$3^5\times {\mathrm{11}}^1\times {\mathrm{89}}^2$

素因数の和:204

約数の個数: 36

約数和(自身を含む): 34992048

約数和(自身を除く): 13819215

約数列:

[1, 3, 9, 11, 27, 33, 81, 89, 99, 243, 267, 297, 801, 891, 979, 2403, 2673, 2937, 7209, 7921, 8811, 21627, 23763, 26433, 71289, 79299, 87131, 213867, 237897, 261393, 641601, 784179, 1924803, 2352537, 7057611, 21172833]

約数ペア:

[(1, 21172833), (3, 7057611), (9, 2352537), (11, 1924803), (27, 784179), (33, 641601), (81, 261393), (89, 237897), (99, 213867), (243, 87131), (267, 79299), (297, 71289), (801, 26433), (891, 23763), (979, 21627), (2403, 8811), (2673, 7921), (2937, 7209)]