209219978

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{8863}}^1$

素因数の和:8942

約数の個数: 32

約数和(自身を含む): 363778560

約数和(自身を除く): 154558582

約数列:

[1, 2, 11, 22, 29, 37, 58, 74, 319, 407, 638, 814, 1073, 2146, 8863, 11803, 17726, 23606, 97493, 194986, 257027, 327931, 514054, 655862, 2827297, 3607241, 5654594, 7214482, 9509999, 19019998, 104609989, 209219978]

約数ペア:

[(1, 209219978), (2, 104609989), (11, 19019998), (22, 9509999), (29, 7214482), (37, 5654594), (58, 3607241), (74, 2827297), (319, 655862), (407, 514054), (638, 327931), (814, 257027), (1073, 194986), (2146, 97493), (8863, 23606), (11803, 17726)]