18266768

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1657}}^1$

素因数の和:1731

約数の個数: 40

約数和(自身を含む): 38856888

約数和(自身を除く): 20590120

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 53, 104, 106, 208, 212, 424, 689, 848, 1378, 1657, 2756, 3314, 5512, 6628, 11024, 13256, 21541, 26512, 43082, 86164, 87821, 172328, 175642, 344656, 351284, 702568, 1141673, 1405136, 2283346, 4566692, 9133384, 18266768]

約数ペア:

[(1, 18266768), (2, 9133384), (4, 4566692), (8, 2283346), (13, 1405136), (16, 1141673), (26, 702568), (52, 351284), (53, 344656), (104, 175642), (106, 172328), (208, 87821), (212, 86164), (424, 43082), (689, 26512), (848, 21541), (1378, 13256), (1657, 11024), (2756, 6628), (3314, 5512)]