19945738

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{11719}}^1$

素因数の和:11781

約数の個数: 16

約数和(自身を含む): 32065920

約数和(自身を除く): 12120182

約数列:

[1, 2, 23, 37, 46, 74, 851, 1702, 11719, 23438, 269537, 433603, 539074, 867206, 9972869, 19945738]

約数ペア:

[(1, 19945738), (2, 9972869), (23, 867206), (37, 539074), (46, 433603), (74, 269537), (851, 23438), (1702, 11719)]