20966908

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{173}}^1\times {\mathrm{739}}^1$

素因数の和:957

約数の個数: 24

約数和(自身を含む): 37855440

約数和(自身を除く): 16888532

約数列:

[1, 2, 4, 41, 82, 164, 173, 346, 692, 739, 1478, 2956, 7093, 14186, 28372, 30299, 60598, 121196, 127847, 255694, 511388, 5241727, 10483454, 20966908]

約数ペア:

[(1, 20966908), (2, 10483454), (4, 5241727), (41, 511388), (82, 255694), (164, 127847), (173, 121196), (346, 60598), (692, 30299), (739, 28372), (1478, 14186), (2956, 7093)]