20256831

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{5641}}^1$

素因数の和:5676

約数の個数: 32

約数和(自身を含む): 36108800

約数和(自身を除く): 15851969

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 133, 171, 189, 399, 513, 1197, 3591, 5641, 16923, 39487, 50769, 107179, 118461, 152307, 321537, 355383, 750253, 964611, 1066149, 2250759, 2893833, 6752277, 20256831]

約数ペア:

[(1, 20256831), (3, 6752277), (7, 2893833), (9, 2250759), (19, 1066149), (21, 964611), (27, 750253), (57, 355383), (63, 321537), (133, 152307), (171, 118461), (189, 107179), (399, 50769), (513, 39487), (1197, 16923), (3591, 5641)]