19943974

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{271}}^1\times {\mathrm{1187}}^1$

素因数の和:1491

約数の個数: 16

約数和(自身を含む): 31021056

約数和(自身を除く): 11077082

約数列:

[1, 2, 31, 62, 271, 542, 1187, 2374, 8401, 16802, 36797, 73594, 321677, 643354, 9971987, 19943974]

約数ペア:

[(1, 19943974), (2, 9971987), (31, 643354), (62, 321677), (271, 73594), (542, 36797), (1187, 16802), (2374, 8401)]