20061321

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{367}}^1$

素因数の和:533

約数の個数: 32

約数和(自身を含む): 32501760

約数和(自身を除く): 12440439

約数列:

[1, 3, 7, 19, 21, 57, 133, 137, 367, 399, 411, 959, 1101, 2569, 2603, 2877, 6973, 7707, 7809, 18221, 20919, 48811, 50279, 54663, 146433, 150837, 351953, 955301, 1055859, 2865903, 6687107, 20061321]

約数ペア:

[(1, 20061321), (3, 6687107), (7, 2865903), (19, 1055859), (21, 955301), (57, 351953), (133, 150837), (137, 146433), (367, 54663), (399, 50279), (411, 48811), (959, 20919), (1101, 18221), (2569, 7809), (2603, 7707), (2877, 6973)]