1621205761

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{529979}}^1$

素因数の和:530028

約数の個数: 16

約数和(自身を含む): 2035123200

約数和(自身を除く): 413917439

約数列:

[1, 7, 19, 23, 133, 161, 437, 3059, 529979, 3709853, 10069601, 12189517, 70487207, 85326619, 231600823, 1621205761]

約数ペア:

[(1, 1621205761), (7, 231600823), (19, 85326619), (23, 70487207), (133, 12189517), (161, 10069601), (437, 3709853), (3059, 529979)]