21000944823

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{349}}^1\times {\mathrm{647039}}^1$

素因数の和:647422

約数の個数: 16

約数和(自身を含む): 28987392000

約数和(自身を除く): 7986447177

約数列:

[1, 3, 31, 93, 349, 1047, 10819, 32457, 647039, 1941117, 20058209, 60174627, 225816611, 677449833, 7000314941, 21000944823]

約数ペア:

[(1, 21000944823), (3, 7000314941), (31, 677449833), (93, 225816611), (349, 60174627), (1047, 20058209), (10819, 1941117), (32457, 647039)]