18298217

素因数分解:

$7^2\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{163}}^1$

素因数の和:285

約数の個数: 24

約数和(自身を含む): 22435200

約数和(自身を除く): 4136983

約数列:

[1, 7, 29, 49, 79, 163, 203, 553, 1141, 1421, 2291, 3871, 4727, 7987, 12877, 16037, 33089, 90139, 112259, 231623, 373433, 630973, 2614031, 18298217]

約数ペア:

[(1, 18298217), (7, 2614031), (29, 630973), (49, 373433), (79, 231623), (163, 112259), (203, 90139), (553, 33089), (1141, 16037), (1421, 12877), (2291, 7987), (3871, 4727)]