21125247

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2141}}^1$

素因数の和:2191

約数の個数: 32

約数和(自身を含む): 34546176

約数和(自身を除く): 13420929

約数列:

[1, 3, 11, 13, 23, 33, 39, 69, 143, 253, 299, 429, 759, 897, 2141, 3289, 6423, 9867, 23551, 27833, 49243, 70653, 83499, 147729, 306163, 541673, 640159, 918489, 1625019, 1920477, 7041749, 21125247]

約数ペア:

[(1, 21125247), (3, 7041749), (11, 1920477), (13, 1625019), (23, 918489), (33, 640159), (39, 541673), (69, 306163), (143, 147729), (253, 83499), (299, 70653), (429, 49243), (759, 27833), (897, 23551), (2141, 9867), (3289, 6423)]