21009118

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{21839}}^1$

素因数の和:21891

約数の個数: 16

約数和(自身を含む): 34856640

約数和(自身を除く): 13847522

約数列:

[1, 2, 13, 26, 37, 74, 481, 962, 21839, 43678, 283907, 567814, 808043, 1616086, 10504559, 21009118]

約数ペア:

[(1, 21009118), (2, 10504559), (13, 1616086), (26, 808043), (37, 567814), (74, 283907), (481, 43678), (962, 21839)]