20949115

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{20047}}^1$

素因数の和:20082

約数の個数: 16

約数和(自身を含む): 28869120

約数和(自身を除く): 7920005

約数列:

[1, 5, 11, 19, 55, 95, 209, 1045, 20047, 100235, 220517, 380893, 1102585, 1904465, 4189823, 20949115]

約数ペア:

[(1, 20949115), (5, 4189823), (11, 1904465), (19, 1102585), (55, 380893), (95, 220517), (209, 100235), (1045, 20047)]