20189939

素因数分解:

$7^1\times {\mathrm{11}}^4\times {\mathrm{197}}^1$

素因数の和:248

約数の個数: 20

約数和(自身を含む): 25510320

約数和(自身を除く): 5320381

約数列:

[1, 7, 11, 77, 121, 197, 847, 1331, 1379, 2167, 9317, 14641, 15169, 23837, 102487, 166859, 262207, 1835449, 2884277, 20189939]

約数ペア:

[(1, 20189939), (7, 2884277), (11, 1835449), (77, 262207), (121, 166859), (197, 102487), (847, 23837), (1331, 15169), (1379, 14641), (2167, 9317)]