81618278

素因数分解:

$2^1\times 7^1\times {\mathrm{487}}^1\times {\mathrm{11971}}^1$

素因数の和:12467

約数の個数: 16

約数和(自身を含む): 140216064

約数和(自身を除く): 58597786

約数列:

[1, 2, 7, 14, 487, 974, 3409, 6818, 11971, 23942, 83797, 167594, 5829877, 11659754, 40809139, 81618278]

約数ペア:

[(1, 81618278), (2, 40809139), (7, 11659754), (14, 5829877), (487, 167594), (974, 83797), (3409, 23942), (6818, 11971)]