21388424

素因数分解:

$2^3\times {\mathrm{157}}^1\times {\mathrm{17029}}^1$

素因数の和:17192

約数の個数: 16

約数和(自身を含む): 40361100

約数和(自身を除く): 18972676

約数列:

[1, 2, 4, 8, 157, 314, 628, 1256, 17029, 34058, 68116, 136232, 2673553, 5347106, 10694212, 21388424]

約数ペア:

[(1, 21388424), (2, 10694212), (4, 5347106), (8, 2673553), (157, 136232), (314, 68116), (628, 34058), (1256, 17029)]