21801473948

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{320609911}}^1$

素因数の和:320609932

約数の個数: 12

約数和(自身を含む): 40396848912

約数和(自身を除く): 18595374964

約数列:

[1, 2, 4, 17, 34, 68, 320609911, 641219822, 1282439644, 5450368487, 10900736974, 21801473948]

約数ペア:

[(1, 21801473948), (2, 10900736974), (4, 5450368487), (17, 1282439644), (34, 641219822), (68, 320609911)]