21771754

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{7759}}^1$

素因数の和:7845

約数の個数: 16

約数和(自身を含む): 34640640

約数和(自身を除く): 12868886

約数列:

[1, 2, 23, 46, 61, 122, 1403, 2806, 7759, 15518, 178457, 356914, 473299, 946598, 10885877, 21771754]

約数ペア:

[(1, 21771754), (2, 10885877), (23, 946598), (46, 473299), (61, 356914), (122, 178457), (1403, 15518), (2806, 7759)]