20825918

素因数分解:

$2^1\times {\mathrm{17}}^2\times {\mathrm{137}}^1\times {\mathrm{263}}^1$

素因数の和:436

約数の個数: 24

約数和(自身を含む): 33553872

約数和(自身を除く): 12727954

約数列:

[1, 2, 17, 34, 137, 263, 274, 289, 526, 578, 2329, 4471, 4658, 8942, 36031, 39593, 72062, 76007, 79186, 152014, 612527, 1225054, 10412959, 20825918]

約数ペア:

[(1, 20825918), (2, 10412959), (17, 1225054), (34, 612527), (137, 152014), (263, 79186), (274, 76007), (289, 72062), (526, 39593), (578, 36031), (2329, 8942), (4471, 4658)]