21041456

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{35543}}^1$

素因数の和:35588

約数の個数: 20

約数和(自身を含む): 41870832

約数和(自身を除く): 20829376

約数列:

[1, 2, 4, 8, 16, 37, 74, 148, 296, 592, 35543, 71086, 142172, 284344, 568688, 1315091, 2630182, 5260364, 10520728, 21041456]

約数ペア:

[(1, 21041456), (2, 10520728), (4, 5260364), (8, 2630182), (16, 1315091), (37, 568688), (74, 284344), (148, 142172), (296, 71086), (592, 35543)]