20715992

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{1559}}^1$

素因数の和:1727

約数の個数: 32

約数和(自身を含む): 42681600

約数和(自身を除く): 21965608

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 151, 302, 604, 1208, 1559, 1661, 3118, 3322, 6236, 6644, 12472, 13288, 17149, 34298, 68596, 137192, 235409, 470818, 941636, 1883272, 2589499, 5178998, 10357996, 20715992]

約数ペア:

[(1, 20715992), (2, 10357996), (4, 5178998), (8, 2589499), (11, 1883272), (22, 941636), (44, 470818), (88, 235409), (151, 137192), (302, 68596), (604, 34298), (1208, 17149), (1559, 13288), (1661, 12472), (3118, 6644), (3322, 6236)]