21951056

素因数分解:

$2^4\times {\mathrm{823}}^1\times {\mathrm{1667}}^1$

素因数の和:2498

約数の個数: 20

約数和(自身を含む): 42607392

約数和(自身を除く): 20656336

約数列:

[1, 2, 4, 8, 16, 823, 1646, 1667, 3292, 3334, 6584, 6668, 13168, 13336, 26672, 1371941, 2743882, 5487764, 10975528, 21951056]

約数ペア:

[(1, 21951056), (2, 10975528), (4, 5487764), (8, 2743882), (16, 1371941), (823, 26672), (1646, 13336), (1667, 13168), (3292, 6668), (3334, 6584)]