19540688

素因数分解:

$2^4\times {\mathrm{277}}^1\times {\mathrm{4409}}^1$

素因数の和:4694

約数の個数: 20

約数和(自身を含む): 38005380

約数和(自身を除く): 18464692

約数列:

[1, 2, 4, 8, 16, 277, 554, 1108, 2216, 4409, 4432, 8818, 17636, 35272, 70544, 1221293, 2442586, 4885172, 9770344, 19540688]

約数ペア:

[(1, 19540688), (2, 9770344), (4, 4885172), (8, 2442586), (16, 1221293), (277, 70544), (554, 35272), (1108, 17636), (2216, 8818), (4409, 4432)]