20781266

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{79}}^1\times {\mathrm{1087}}^1$

素因数の和:1190

約数の個数: 24

約数和(自身を含む): 34728960

約数和(自身を除く): 13947694

約数列:

[1, 2, 11, 22, 79, 121, 158, 242, 869, 1087, 1738, 2174, 9559, 11957, 19118, 23914, 85873, 131527, 171746, 263054, 944603, 1889206, 10390633, 20781266]

約数ペア:

[(1, 20781266), (2, 10390633), (11, 1889206), (22, 944603), (79, 263054), (121, 171746), (158, 131527), (242, 85873), (869, 23914), (1087, 19118), (1738, 11957), (2174, 9559)]