19957972

素因数分解:

$2^2\times {\mathrm{151}}^1\times {\mathrm{173}}^1\times {\mathrm{191}}^1$

素因数の和:519

約数の個数: 24

約数和(自身を含む): 35546112

約数和(自身を除く): 15588140

約数列:

[1, 2, 4, 151, 173, 191, 302, 346, 382, 604, 692, 764, 26123, 28841, 33043, 52246, 57682, 66086, 104492, 115364, 132172, 4989493, 9978986, 19957972]

約数ペア:

[(1, 19957972), (2, 9978986), (4, 4989493), (151, 132172), (173, 115364), (191, 104492), (302, 66086), (346, 57682), (382, 52246), (604, 33043), (692, 28841), (764, 26123)]