2158888

素因数分解:

$2^3\times {\mathrm{421}}^1\times {\mathrm{641}}^1$

素因数の和:1068

約数の個数: 16

約数和(自身を含む): 4063860

約数和(自身を除く): 1904972

約数列:

[1, 2, 4, 8, 421, 641, 842, 1282, 1684, 2564, 3368, 5128, 269861, 539722, 1079444, 2158888]

約数ペア:

[(1, 2158888), (2, 1079444), (4, 539722), (8, 269861), (421, 5128), (641, 3368), (842, 2564), (1282, 1684)]