220897781

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{12251}}^1$

素因数の和:12356

約数の個数: 16

約数和(自身を含む): 253861440

約数和(自身を除く): 32963659

約数列:

[1, 13, 19, 73, 247, 949, 1387, 12251, 18031, 159263, 232769, 894323, 3025997, 11626199, 16992137, 220897781]

約数ペア:

[(1, 220897781), (13, 16992137), (19, 11626199), (73, 3025997), (247, 894323), (949, 232769), (1387, 159263), (12251, 18031)]