21504981

素因数分解:

$3^1\times {\mathrm{89}}^1\times {\mathrm{239}}^1\times {\mathrm{337}}^1$

素因数の和:668

約数の個数: 16

約数和(自身を含む): 29203200

約数和(自身を除く): 7698219

約数列:

[1, 3, 89, 239, 267, 337, 717, 1011, 21271, 29993, 63813, 80543, 89979, 241629, 7168327, 21504981]

約数ペア:

[(1, 21504981), (3, 7168327), (89, 241629), (239, 89979), (267, 80543), (337, 63813), (717, 29993), (1011, 21271)]