21393004

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{314603}}^1$

素因数の和:314624

約数の個数: 12

約数和(自身を含む): 39640104

約数和(自身を除く): 18247100

約数列:

[1, 2, 4, 17, 34, 68, 314603, 629206, 1258412, 5348251, 10696502, 21393004]

約数ペア:

[(1, 21393004), (2, 10696502), (4, 5348251), (17, 1258412), (34, 629206), (68, 314603)]