21082456

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{37117}}^1$

素因数の和:37194

約数の個数: 16

約数和(自身を含む): 40087440

約数和(自身を除く): 19004984

約数列:

[1, 2, 4, 8, 71, 142, 284, 568, 37117, 74234, 148468, 296936, 2635307, 5270614, 10541228, 21082456]

約数ペア:

[(1, 21082456), (2, 10541228), (4, 5270614), (8, 2635307), (71, 296936), (142, 148468), (284, 74234), (568, 37117)]