21917889

素因数分解:

$3^2\times 7^1\times {\mathrm{173}}^1\times {\mathrm{2011}}^1$

素因数の和:2197

約数の個数: 24

約数和(自身を含む): 36409152

約数和(自身を除く): 14491263

約数列:

[1, 3, 7, 9, 21, 63, 173, 519, 1211, 1557, 2011, 3633, 6033, 10899, 14077, 18099, 42231, 126693, 347903, 1043709, 2435321, 3131127, 7305963, 21917889]

約数ペア:

[(1, 21917889), (3, 7305963), (7, 3131127), (9, 2435321), (21, 1043709), (63, 347903), (173, 126693), (519, 42231), (1211, 18099), (1557, 14077), (2011, 10899), (3633, 6033)]