1223909281

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{161743}}^1$

素因数の和:161820

約数の個数: 16

約数和(自身を含む): 1490632704

約数和(自身を除く): 266723423

約数列:

[1, 7, 23, 47, 161, 329, 1081, 7567, 161743, 1132201, 3720089, 7601921, 26040623, 53213447, 174844183, 1223909281]

約数ペア:

[(1, 1223909281), (7, 174844183), (23, 53213447), (47, 26040623), (161, 7601921), (329, 3720089), (1081, 1132201), (7567, 161743)]