21358689

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{617}}^1\times {\mathrm{1049}}^1$

素因数の和:1680

約数の個数: 16

約数和(自身を含む): 31147200

約数和(自身を除く): 9788511

約数列:

[1, 3, 11, 33, 617, 1049, 1851, 3147, 6787, 11539, 20361, 34617, 647233, 1941699, 7119563, 21358689]

約数ペア:

[(1, 21358689), (3, 7119563), (11, 1941699), (33, 647233), (617, 34617), (1049, 20361), (1851, 11539), (3147, 6787)]