21708272

素因数分解:

$2^4\times {\mathrm{131}}^1\times {\mathrm{10357}}^1$

素因数の和:10496

約数の個数: 20

約数和(自身を含む): 42384936

約数和(自身を除く): 20676664

約数列:

[1, 2, 4, 8, 16, 131, 262, 524, 1048, 2096, 10357, 20714, 41428, 82856, 165712, 1356767, 2713534, 5427068, 10854136, 21708272]

約数ペア:

[(1, 21708272), (2, 10854136), (4, 5427068), (8, 2713534), (16, 1356767), (131, 165712), (262, 82856), (524, 41428), (1048, 20714), (2096, 10357)]