20564553

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{491}}^1\times {\mathrm{607}}^1$

素因数の和:1124

約数の個数: 16

約数和(自身を含む): 28717056

約数和(自身を除く): 8152503

約数列:

[1, 3, 23, 69, 491, 607, 1473, 1821, 11293, 13961, 33879, 41883, 298037, 894111, 6854851, 20564553]

約数ペア:

[(1, 20564553), (3, 6854851), (23, 894111), (69, 298037), (491, 41883), (607, 33879), (1473, 13961), (1821, 11293)]