18557973

素因数分解:

$3^2\times 7^1\times {\mathrm{107}}^1\times {\mathrm{2753}}^1$

素因数の和:2873

約数の個数: 24

約数和(自身を含む): 30932928

約数和(自身を除く): 12374955

約数列:

[1, 3, 7, 9, 21, 63, 107, 321, 749, 963, 2247, 2753, 6741, 8259, 19271, 24777, 57813, 173439, 294571, 883713, 2061997, 2651139, 6185991, 18557973]

約数ペア:

[(1, 18557973), (3, 6185991), (7, 2651139), (9, 2061997), (21, 883713), (63, 294571), (107, 173439), (321, 57813), (749, 24777), (963, 19271), (2247, 8259), (2753, 6741)]