20321811

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{5167}}^1$

素因数の和:5215

約数の個数: 24

約数和(自身を含む): 32248320

約数和(自身を除く): 11926509

約数列:

[1, 3, 9, 19, 23, 57, 69, 171, 207, 437, 1311, 3933, 5167, 15501, 46503, 98173, 118841, 294519, 356523, 883557, 1069569, 2257979, 6773937, 20321811]

約数ペア:

[(1, 20321811), (3, 6773937), (9, 2257979), (19, 1069569), (23, 883557), (57, 356523), (69, 294519), (171, 118841), (207, 98173), (437, 46503), (1311, 15501), (3933, 5167)]