20177668

素因数分解:

$2^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{5501}}^1$

素因数の和:5643

約数の個数: 24

約数和(自身を含む): 40670784

約数和(自身を除く): 20493116

約数列:

[1, 2, 4, 7, 14, 28, 131, 262, 524, 917, 1834, 3668, 5501, 11002, 22004, 38507, 77014, 154028, 720631, 1441262, 2882524, 5044417, 10088834, 20177668]

約数ペア:

[(1, 20177668), (2, 10088834), (4, 5044417), (7, 2882524), (14, 1441262), (28, 720631), (131, 154028), (262, 77014), (524, 38507), (917, 22004), (1834, 11002), (3668, 5501)]