20786095

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{19891}}^1$

素因数の和:19926

約数の個数: 16

約数和(自身を含む): 28644480

約数和(自身を除く): 7858385

約数列:

[1, 5, 11, 19, 55, 95, 209, 1045, 19891, 99455, 218801, 377929, 1094005, 1889645, 4157219, 20786095]

約数ペア:

[(1, 20786095), (5, 4157219), (11, 1889645), (19, 1094005), (55, 377929), (95, 218801), (209, 99455), (1045, 19891)]