221566807

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{26399}}^1$

素因数の和:26526

約数の個数: 16

約数和(自身を含む): 278784000

約数和(自身を除く): 57217193

約数列:

[1, 7, 11, 77, 109, 763, 1199, 8393, 26399, 184793, 290389, 2032723, 2877491, 20142437, 31652401, 221566807]

約数ペア:

[(1, 221566807), (7, 31652401), (11, 20142437), (77, 2877491), (109, 2032723), (763, 290389), (1199, 184793), (8393, 26399)]