21277424

素因数分解:

$2^4\times 7^1\times {\mathrm{189977}}^1$

素因数の和:189992

約数の個数: 20

約数和(自身を含む): 47114544

約数和(自身を除く): 25837120

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 189977, 379954, 759908, 1329839, 1519816, 2659678, 3039632, 5319356, 10638712, 21277424]

約数ペア:

[(1, 21277424), (2, 10638712), (4, 5319356), (7, 3039632), (8, 2659678), (14, 1519816), (16, 1329839), (28, 759908), (56, 379954), (112, 189977)]