21871595

素因数分解:

$5^1\times {\mathrm{59}}^1\times {\mathrm{151}}^1\times {\mathrm{491}}^1$

素因数の和:706

約数の個数: 16

約数和(自身を含む): 26922240

約数和(自身を除く): 5050645

約数列:

[1, 5, 59, 151, 295, 491, 755, 2455, 8909, 28969, 44545, 74141, 144845, 370705, 4374319, 21871595]

約数ペア:

[(1, 21871595), (5, 4374319), (59, 370705), (151, 144845), (295, 74141), (491, 44545), (755, 28969), (2455, 8909)]