21769810

素因数分解:

$2^1\times 5^1\times {\mathrm{431}}^1\times {\mathrm{5051}}^1$

素因数の和:5489

約数の個数: 16

約数和(自身を含む): 39284352

約数和(自身を除く): 17514542

約数列:

[1, 2, 5, 10, 431, 862, 2155, 4310, 5051, 10102, 25255, 50510, 2176981, 4353962, 10884905, 21769810]

約数ペア:

[(1, 21769810), (2, 10884905), (5, 4353962), (10, 2176981), (431, 50510), (862, 25255), (2155, 10102), (4310, 5051)]