20497789

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{2677}}^1$

素因数の和:2740

約数の個数: 16

約数和(自身を含む): 23994880

約数和(自身を除く): 3497091

約数列:

[1, 13, 19, 31, 247, 403, 589, 2677, 7657, 34801, 50863, 82987, 661219, 1078831, 1576753, 20497789]

約数ペア:

[(1, 20497789), (13, 1576753), (19, 1078831), (31, 661219), (247, 82987), (403, 50863), (589, 34801), (2677, 7657)]