20459721

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{12941}}^1$

素因数の和:12992

約数の個数: 16

約数和(自身を含む): 29818368

約数和(自身を除く): 9358647

約数列:

[1, 3, 17, 31, 51, 93, 527, 1581, 12941, 38823, 219997, 401171, 659991, 1203513, 6819907, 20459721]

約数ペア:

[(1, 20459721), (3, 6819907), (17, 1203513), (31, 659991), (51, 401171), (93, 219997), (527, 38823), (1581, 12941)]