20488761

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{137}}^1\times {\mathrm{191}}^1$

素因数の和:366

約数の個数: 32

約数和(自身を含む): 31795200

約数和(自身を除く): 11306439

約数列:

[1, 3, 9, 27, 29, 87, 137, 191, 261, 411, 573, 783, 1233, 1719, 3699, 3973, 5157, 5539, 11919, 16617, 26167, 35757, 49851, 78501, 107271, 149553, 235503, 706509, 758843, 2276529, 6829587, 20488761]

約数ペア:

[(1, 20488761), (3, 6829587), (9, 2276529), (27, 758843), (29, 706509), (87, 235503), (137, 149553), (191, 107271), (261, 78501), (411, 49851), (573, 35757), (783, 26167), (1233, 16617), (1719, 11919), (3699, 5539), (3973, 5157)]