21172922

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{6997}}^1$

素因数の和:7105

約数の個数: 16

約数和(自身を含む): 34010280

約数和(自身を除く): 12837358

約数列:

[1, 2, 17, 34, 89, 178, 1513, 3026, 6997, 13994, 118949, 237898, 622733, 1245466, 10586461, 21172922]

約数ペア:

[(1, 21172922), (2, 10586461), (17, 1245466), (34, 622733), (89, 237898), (178, 118949), (1513, 13994), (3026, 6997)]