21000674289

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{16393969}}^1$

素因数の和:16394040

約数の個数: 16

約数和(自身を含む): 32525636480

約数和(自身を除く): 11524962191

約数列:

[1, 3, 7, 21, 61, 183, 427, 1281, 16393969, 49181907, 114757783, 344273349, 1000032109, 3000096327, 7000224763, 21000674289]

約数ペア:

[(1, 21000674289), (3, 7000224763), (7, 3000096327), (21, 1000032109), (61, 344273349), (183, 114757783), (427, 49181907), (1281, 16393969)]