20007891

素因数分解:

$3^5\times {\mathrm{137}}^1\times {\mathrm{601}}^1$

素因数の和:753

約数の個数: 24

約数和(自身を含む): 30239664

約数和(自身を除く): 10231773

約数列:

[1, 3, 9, 27, 81, 137, 243, 411, 601, 1233, 1803, 3699, 5409, 11097, 16227, 33291, 48681, 82337, 146043, 247011, 741033, 2223099, 6669297, 20007891]

約数ペア:

[(1, 20007891), (3, 6669297), (9, 2223099), (27, 741033), (81, 247011), (137, 146043), (243, 82337), (411, 48681), (601, 33291), (1233, 16227), (1803, 11097), (3699, 5409)]