21757178

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{9551}}^1$

素因数の和:9637

約数の個数: 16

約数和(自身を含む): 35074944

約数和(自身を除く): 13317766

約数列:

[1, 2, 17, 34, 67, 134, 1139, 2278, 9551, 19102, 162367, 324734, 639917, 1279834, 10878589, 21757178]

約数ペア:

[(1, 21757178), (2, 10878589), (17, 1279834), (34, 639917), (67, 324734), (134, 162367), (1139, 19102), (2278, 9551)]