21507737

素因数分解:

${\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{821}}^1$

素因数の和:928

約数の個数: 16

約数和(自身を含む): 24147072

約数和(自身を除く): 2639335

約数列:

[1, 17, 23, 67, 391, 821, 1139, 1541, 13957, 18883, 26197, 55007, 321011, 935119, 1265161, 21507737]

約数ペア:

[(1, 21507737), (17, 1265161), (23, 935119), (67, 321011), (391, 55007), (821, 26197), (1139, 18883), (1541, 13957)]