20229979

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1$

素因数の和:211

約数の個数: 32

約数和(自身を含む): 26426880

約数和(自身を除く): 6196901

約数列:

[1, 7, 11, 59, 61, 73, 77, 413, 427, 511, 649, 671, 803, 3599, 4307, 4453, 4543, 4697, 5621, 25193, 30149, 31171, 39589, 47377, 48983, 262727, 277123, 331639, 342881, 1839089, 2889997, 20229979]

約数ペア:

[(1, 20229979), (7, 2889997), (11, 1839089), (59, 342881), (61, 331639), (73, 277123), (77, 262727), (413, 48983), (427, 47377), (511, 39589), (649, 31171), (671, 30149), (803, 25193), (3599, 5621), (4307, 4697), (4453, 4543)]