21081616

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{57287}}^1$

素因数の和:57318

約数の個数: 20

約数和(自身を含む): 42622272

約数和(自身を除く): 21540656

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 57287, 114574, 229148, 458296, 916592, 1317601, 2635202, 5270404, 10540808, 21081616]

約数ペア:

[(1, 21081616), (2, 10540808), (4, 5270404), (8, 2635202), (16, 1317601), (23, 916592), (46, 458296), (92, 229148), (184, 114574), (368, 57287)]