20367765

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1789}}^1$

素因数の和:1834

約数の個数: 48

約数和(自身を含む): 40210560

約数和(自身を除く): 19842795

約数列:

[1, 3, 5, 9, 11, 15, 23, 33, 45, 55, 69, 99, 115, 165, 207, 253, 345, 495, 759, 1035, 1265, 1789, 2277, 3795, 5367, 8945, 11385, 16101, 19679, 26835, 41147, 59037, 80505, 98395, 123441, 177111, 205735, 295185, 370323, 452617, 617205, 885555, 1357851, 1851615, 2263085, 4073553, 6789255, 20367765]

約数ペア:

[(1, 20367765), (3, 6789255), (5, 4073553), (9, 2263085), (11, 1851615), (15, 1357851), (23, 885555), (33, 617205), (45, 452617), (55, 370323), (69, 295185), (99, 205735), (115, 177111), (165, 123441), (207, 98395), (253, 80505), (345, 59037), (495, 41147), (759, 26835), (1035, 19679), (1265, 16101), (1789, 11385), (2277, 8945), (3795, 5367)]