20627757

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{563}}^1$

素因数の和:654

約数の個数: 32

約数和(自身を含む): 32486400

約数和(自身を除く): 11858643

約数列:

[1, 3, 9, 23, 27, 59, 69, 177, 207, 531, 563, 621, 1357, 1593, 1689, 4071, 5067, 12213, 12949, 15201, 33217, 36639, 38847, 99651, 116541, 298953, 349623, 763991, 896859, 2291973, 6875919, 20627757]

約数ペア:

[(1, 20627757), (3, 6875919), (9, 2291973), (23, 896859), (27, 763991), (59, 349623), (69, 298953), (177, 116541), (207, 99651), (531, 38847), (563, 36639), (621, 33217), (1357, 15201), (1593, 12949), (1689, 12213), (4071, 5067)]