19982534

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{641}}^1$

素因数の和:776

約数の個数: 32

約数和(自身を含む): 35592480

約数和(自身を除く): 15609946

約数列:

[1, 2, 11, 13, 22, 26, 109, 143, 218, 286, 641, 1199, 1282, 1417, 2398, 2834, 7051, 8333, 14102, 15587, 16666, 31174, 69869, 91663, 139738, 183326, 768559, 908297, 1537118, 1816594, 9991267, 19982534]

約数ペア:

[(1, 19982534), (2, 9991267), (11, 1816594), (13, 1537118), (22, 908297), (26, 768559), (109, 183326), (143, 139738), (218, 91663), (286, 69869), (641, 31174), (1199, 16666), (1282, 15587), (1417, 14102), (2398, 8333), (2834, 7051)]