20288972

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{457}}^1\times {\mathrm{1009}}^1$

素因数の和:1481

約数の個数: 24

約数和(自身を含む): 38856720

約数和(自身を除く): 18567748

約数列:

[1, 2, 4, 11, 22, 44, 457, 914, 1009, 1828, 2018, 4036, 5027, 10054, 11099, 20108, 22198, 44396, 461113, 922226, 1844452, 5072243, 10144486, 20288972]

約数ペア:

[(1, 20288972), (2, 10144486), (4, 5072243), (11, 1844452), (22, 922226), (44, 461113), (457, 44396), (914, 22198), (1009, 20108), (1828, 11099), (2018, 10054), (4036, 5027)]