20400489

素因数分解:

$3^2\times {\mathrm{59}}^1\times {\mathrm{103}}^1\times {\mathrm{373}}^1$

素因数の和:541

約数の個数: 24

約数和(自身を含む): 30338880

約数和(自身を除く): 9938391

約数列:

[1, 3, 9, 59, 103, 177, 309, 373, 531, 927, 1119, 3357, 6077, 18231, 22007, 38419, 54693, 66021, 115257, 198063, 345771, 2266721, 6800163, 20400489]

約数ペア:

[(1, 20400489), (3, 6800163), (9, 2266721), (59, 345771), (103, 198063), (177, 115257), (309, 66021), (373, 54693), (531, 38419), (927, 22007), (1119, 18231), (3357, 6077)]