17800016

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{85577}}^1$

素因数の和:85598

約数の個数: 20

約数和(自身を含む): 37140852

約数和(自身を除く): 19340836

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 85577, 171154, 342308, 684616, 1112501, 1369232, 2225002, 4450004, 8900008, 17800016]

約数ペア:

[(1, 17800016), (2, 8900008), (4, 4450004), (8, 2225002), (13, 1369232), (16, 1112501), (26, 684616), (52, 342308), (104, 171154), (208, 85577)]