20944785

素因数分解:

$3^1\times 5^1\times {\mathrm{991}}^1\times {\mathrm{1409}}^1$

素因数の和:2408

約数の個数: 16

約数和(自身を含む): 33569280

約数和(自身を除く): 12624495

約数列:

[1, 3, 5, 15, 991, 1409, 2973, 4227, 4955, 7045, 14865, 21135, 1396319, 4188957, 6981595, 20944785]

約数ペア:

[(1, 20944785), (3, 6981595), (5, 4188957), (15, 1396319), (991, 21135), (1409, 14865), (2973, 7045), (4227, 4955)]