20988994

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{269}}^1\times {\mathrm{3001}}^1$

素因数の和:3285

約数の個数: 16

約数和(自身を含む): 34042680

約数和(自身を除く): 13053686

約数列:

[1, 2, 13, 26, 269, 538, 3001, 3497, 6002, 6994, 39013, 78026, 807269, 1614538, 10494497, 20988994]

約数ペア:

[(1, 20988994), (2, 10494497), (13, 1614538), (26, 807269), (269, 78026), (538, 39013), (3001, 6994), (3497, 6002)]