20619005

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{173}}^1\times {\mathrm{197}}^1$

素因数の和:397

約数の個数: 24

約数和(自身を含む): 27492696

約数和(自身を除く): 6873691

約数列:

[1, 5, 11, 55, 121, 173, 197, 605, 865, 985, 1903, 2167, 9515, 10835, 20933, 23837, 34081, 104665, 119185, 170405, 374891, 1874455, 4123801, 20619005]

約数ペア:

[(1, 20619005), (5, 4123801), (11, 1874455), (55, 374891), (121, 170405), (173, 119185), (197, 104665), (605, 34081), (865, 23837), (985, 20933), (1903, 10835), (2167, 9515)]