19994212

素因数分解:

$2^2\times 7^1\times {\mathrm{151}}^1\times {\mathrm{4729}}^1$

素因数の和:4891

約数の個数: 24

約数和(自身を含む): 40261760

約数和(自身を除く): 20267548

約数列:

[1, 2, 4, 7, 14, 28, 151, 302, 604, 1057, 2114, 4228, 4729, 9458, 18916, 33103, 66206, 132412, 714079, 1428158, 2856316, 4998553, 9997106, 19994212]

約数ペア:

[(1, 19994212), (2, 9997106), (4, 4998553), (7, 2856316), (14, 1428158), (28, 714079), (151, 132412), (302, 66206), (604, 33103), (1057, 18916), (2114, 9458), (4228, 4729)]