21194973

素因数分解:

$3^3\times {\mathrm{307}}^1\times {\mathrm{2557}}^1$

素因数の和:2873

約数の個数: 16

約数和(自身を含む): 31514560

約数和(自身を除く): 10319587

約数列:

[1, 3, 9, 27, 307, 921, 2557, 2763, 7671, 8289, 23013, 69039, 784999, 2354997, 7064991, 21194973]

約数ペア:

[(1, 21194973), (3, 7064991), (9, 2354997), (27, 784999), (307, 69039), (921, 23013), (2557, 8289), (2763, 7671)]