18019404

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{277}}^1$

素因数の和:439

約数の個数: 72

約数和(自身を含む): 49584080

約数和(自身を除く): 31564676

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 139, 156, 234, 277, 278, 417, 468, 554, 556, 831, 834, 1108, 1251, 1662, 1668, 1807, 2493, 2502, 3324, 3601, 3614, 4986, 5004, 5421, 7202, 7228, 9972, 10803, 10842, 14404, 16263, 21606, 21684, 32409, 32526, 38503, 43212, 64818, 65052, 77006, 115509, 129636, 154012, 231018, 346527, 462036, 500539, 693054, 1001078, 1386108, 1501617, 2002156, 3003234, 4504851, 6006468, 9009702, 18019404]

約数ペア:

[(1, 18019404), (2, 9009702), (3, 6006468), (4, 4504851), (6, 3003234), (9, 2002156), (12, 1501617), (13, 1386108), (18, 1001078), (26, 693054), (36, 500539), (39, 462036), (52, 346527), (78, 231018), (117, 154012), (139, 129636), (156, 115509), (234, 77006), (277, 65052), (278, 64818), (417, 43212), (468, 38503), (554, 32526), (556, 32409), (831, 21684), (834, 21606), (1108, 16263), (1251, 14404), (1662, 10842), (1668, 10803), (1807, 9972), (2493, 7228), (2502, 7202), (3324, 5421), (3601, 5004), (3614, 4986)]