20263676

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{787}}^1$

素因数の和:989

約数の個数: 24

約数和(自身を含む): 36604176

約数和(自身を除く): 16340500

約数列:

[1, 2, 4, 41, 82, 157, 164, 314, 628, 787, 1574, 3148, 6437, 12874, 25748, 32267, 64534, 123559, 129068, 247118, 494236, 5065919, 10131838, 20263676]

約数ペア:

[(1, 20263676), (2, 10131838), (4, 5065919), (41, 494236), (82, 247118), (157, 129068), (164, 123559), (314, 64534), (628, 32267), (787, 25748), (1574, 12874), (3148, 6437)]