21998713

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{1571}}^1$

素因数の和:1668

約数の個数: 16

約数和(自身を含む): 25655040

約数和(自身を除く): 3656327

約数列:

[1, 11, 19, 67, 209, 737, 1273, 1571, 14003, 17281, 29849, 105257, 328339, 1157827, 1999883, 21998713]

約数ペア:

[(1, 21998713), (11, 1999883), (19, 1157827), (67, 328339), (209, 105257), (737, 29849), (1273, 17281), (1571, 14003)]