19957424

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{18617}}^1$

素因数の和:18692

約数の個数: 20

約数和(自身を含む): 39246744

約数和(自身を除く): 19289320

約数列:

[1, 2, 4, 8, 16, 67, 134, 268, 536, 1072, 18617, 37234, 74468, 148936, 297872, 1247339, 2494678, 4989356, 9978712, 19957424]

約数ペア:

[(1, 19957424), (2, 9978712), (4, 4989356), (8, 2494678), (16, 1247339), (67, 297872), (134, 148936), (268, 74468), (536, 37234), (1072, 18617)]