20734911

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{877}}^1$

素因数の和:991

約数の個数: 24

約数和(自身を含む): 31228704

約数和(自身を除く): 10493793

約数列:

[1, 3, 9, 37, 71, 111, 213, 333, 639, 877, 2627, 2631, 7881, 7893, 23643, 32449, 62267, 97347, 186801, 292041, 560403, 2303879, 6911637, 20734911]

約数ペア:

[(1, 20734911), (3, 6911637), (9, 2303879), (37, 560403), (71, 292041), (111, 186801), (213, 97347), (333, 62267), (639, 32449), (877, 23643), (2627, 7893), (2631, 7881)]