21276542

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79987}}^1$

素因数の和:80015

約数の個数: 16

約数和(自身を含む): 38394240

約数和(自身を除く): 17117698

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 79987, 159974, 559909, 1119818, 1519753, 3039506, 10638271, 21276542]

約数ペア:

[(1, 21276542), (2, 10638271), (7, 3039506), (14, 1519753), (19, 1119818), (38, 559909), (133, 159974), (266, 79987)]