19998407516

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{1303}}^1\times {\mathrm{201947}}^1$

素因数の和:203273

約数の個数: 24

約数和(自身を含む): 36867626880

約数和(自身を除く): 16869219364

約数列:

[1, 2, 4, 19, 38, 76, 1303, 2606, 5212, 24757, 49514, 99028, 201947, 403894, 807788, 3836993, 7673986, 15347972, 263136941, 526273882, 1052547764, 4999601879, 9999203758, 19998407516]

約数ペア:

[(1, 19998407516), (2, 9999203758), (4, 4999601879), (19, 1052547764), (38, 526273882), (76, 263136941), (1303, 15347972), (2606, 7673986), (5212, 3836993), (24757, 807788), (49514, 403894), (99028, 201947)]