19021805

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{1367}}^1$

素因数の和:1417

約数の個数: 24

約数和(自身を含む): 26199936

約数和(自身を除く): 7178131

約数列:

[1, 5, 11, 23, 55, 115, 121, 253, 605, 1265, 1367, 2783, 6835, 13915, 15037, 31441, 75185, 157205, 165407, 345851, 827035, 1729255, 3804361, 19021805]

約数ペア:

[(1, 19021805), (5, 3804361), (11, 1729255), (23, 827035), (55, 345851), (115, 165407), (121, 157205), (253, 75185), (605, 31441), (1265, 15037), (1367, 13915), (2783, 6835)]