21067047

素因数分解:

$3^4\times {\mathrm{179}}^1\times {\mathrm{1453}}^1$

素因数の和:1644

約数の個数: 20

約数和(自身を含む): 31668120

約数和(自身を除く): 10601073

約数列:

[1, 3, 9, 27, 81, 179, 537, 1453, 1611, 4359, 4833, 13077, 14499, 39231, 117693, 260087, 780261, 2340783, 7022349, 21067047]

約数ペア:

[(1, 21067047), (3, 7022349), (9, 2340783), (27, 780261), (81, 260087), (179, 117693), (537, 39231), (1453, 14499), (1611, 13077), (4359, 4833)]