19980712

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{146917}}^1$

素因数の和:146940

約数の個数: 16

約数和(自身を含む): 39667860

約数和(自身を除く): 19687148

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 146917, 293834, 587668, 1175336, 2497589, 4995178, 9990356, 19980712]

約数ペア:

[(1, 19980712), (2, 9990356), (4, 4995178), (8, 2497589), (17, 1175336), (34, 587668), (68, 293834), (136, 146917)]