19702514

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{17623}}^1$

素因数の和:17681

約数の個数: 16

約数和(自身を含む): 32569152

約数和(自身を除く): 12866638

約数列:

[1, 2, 13, 26, 43, 86, 559, 1118, 17623, 35246, 229099, 458198, 757789, 1515578, 9851257, 19702514]

約数ペア:

[(1, 19702514), (2, 9851257), (13, 1515578), (26, 757789), (43, 458198), (86, 229099), (559, 35246), (1118, 17623)]