20347556

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{3389}}^1$

素因数の和:3491

約数の個数: 24

約数和(自身を含む): 37968000

約数和(自身を除く): 17620444

約数列:

[1, 2, 4, 19, 38, 76, 79, 158, 316, 1501, 3002, 3389, 6004, 6778, 13556, 64391, 128782, 257564, 267731, 535462, 1070924, 5086889, 10173778, 20347556]

約数ペア:

[(1, 20347556), (2, 10173778), (4, 5086889), (19, 1070924), (38, 535462), (76, 267731), (79, 257564), (158, 128782), (316, 64391), (1501, 13556), (3002, 6778), (3389, 6004)]