19969509890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{2486863}}^1$

素因数の和:2486954

約数の個数: 32

約数和(自身を含む): 39750034176

約数和(自身を除く): 19780524286

約数列:

[1, 2, 5, 10, 11, 22, 55, 73, 110, 146, 365, 730, 803, 1606, 4015, 8030, 2486863, 4973726, 12434315, 24868630, 27355493, 54710986, 136777465, 181540999, 273554930, 363081998, 907704995, 1815409990, 1996950989, 3993901978, 9984754945, 19969509890]

約数ペア:

[(1, 19969509890), (2, 9984754945), (5, 3993901978), (10, 1996950989), (11, 1815409990), (22, 907704995), (55, 363081998), (73, 273554930), (110, 181540999), (146, 136777465), (365, 54710986), (730, 27355493), (803, 24868630), (1606, 12434315), (4015, 4973726), (8030, 2486863)]