19909766

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{269}}^1\times {\mathrm{1609}}^1$

素因数の和:1903

約数の個数: 16

約数和(自身を含む): 31298400

約数和(自身を除く): 11388634

約数列:

[1, 2, 23, 46, 269, 538, 1609, 3218, 6187, 12374, 37007, 74014, 432821, 865642, 9954883, 19909766]

約数ペア:

[(1, 19909766), (2, 9954883), (23, 865642), (46, 432821), (269, 74014), (538, 37007), (1609, 12374), (3218, 6187)]