720990721

素因数分解:

${\mathrm{11}}^3\times {\mathrm{29}}^1\times {\mathrm{18679}}^1$

素因数の和:18741

約数の個数: 16

約数和(自身を含む): 820425600

約数和(自身を除く): 99434879

約数列:

[1, 11, 29, 121, 319, 1331, 3509, 18679, 38599, 205469, 541691, 2260159, 5958601, 24861749, 65544611, 720990721]

約数ペア:

[(1, 720990721), (11, 65544611), (29, 24861749), (121, 5958601), (319, 2260159), (1331, 541691), (3509, 205469), (18679, 38599)]