18853978

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{13}}^2\times {\mathrm{461}}^1$

素因数の和:511

約数の個数: 36

約数和(自身を含む): 33733854

約数和(自身を除く): 14879876

約数列:

[1, 2, 11, 13, 22, 26, 121, 143, 169, 242, 286, 338, 461, 922, 1573, 1859, 3146, 3718, 5071, 5993, 10142, 11986, 20449, 40898, 55781, 65923, 77909, 111562, 131846, 155818, 725153, 856999, 1450306, 1713998, 9426989, 18853978]

約数ペア:

[(1, 18853978), (2, 9426989), (11, 1713998), (13, 1450306), (22, 856999), (26, 725153), (121, 155818), (143, 131846), (169, 111562), (242, 77909), (286, 65923), (338, 55781), (461, 40898), (922, 20449), (1573, 11986), (1859, 10142), (3146, 5993), (3718, 5071)]