20915049

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{13229}}^1$

素因数の和:13280

約数の個数: 16

約数和(自身を含む): 30481920

約数和(自身を除く): 9566871

約数列:

[1, 3, 17, 31, 51, 93, 527, 1581, 13229, 39687, 224893, 410099, 674679, 1230297, 6971683, 20915049]

約数ペア:

[(1, 20915049), (3, 6971683), (17, 1230297), (31, 674679), (51, 410099), (93, 224893), (527, 39687), (1581, 13229)]