21518152

素因数分解:

$2^3\times {\mathrm{421}}^1\times {\mathrm{6389}}^1$

素因数の和:6816

約数の個数: 16

約数和(自身を含む): 40448700

約数和(自身を除く): 18930548

約数列:

[1, 2, 4, 8, 421, 842, 1684, 3368, 6389, 12778, 25556, 51112, 2689769, 5379538, 10759076, 21518152]

約数ペア:

[(1, 21518152), (2, 10759076), (4, 5379538), (8, 2689769), (421, 51112), (842, 25556), (1684, 12778), (3368, 6389)]