21245008

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{57731}}^1$

素因数の和:57762

約数の個数: 20

約数和(自身を含む): 42952608

約数和(自身を除く): 21707600

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 57731, 115462, 230924, 461848, 923696, 1327813, 2655626, 5311252, 10622504, 21245008]

約数ペア:

[(1, 21245008), (2, 10622504), (4, 5311252), (8, 2655626), (16, 1327813), (23, 923696), (46, 461848), (92, 230924), (184, 115462), (368, 57731)]