18791344

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{191}}^1$

素因数の和:266

約数の個数: 80

約数和(自身を含む): 43997184

約数和(自身を除く): 25205840

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 43, 44, 52, 86, 88, 104, 143, 172, 176, 191, 208, 286, 344, 382, 473, 559, 572, 688, 764, 946, 1118, 1144, 1528, 1892, 2101, 2236, 2288, 2483, 3056, 3784, 4202, 4472, 4966, 6149, 7568, 8213, 8404, 8944, 9932, 12298, 16426, 16808, 19864, 24596, 27313, 32852, 33616, 39728, 49192, 54626, 65704, 90343, 98384, 106769, 109252, 131408, 180686, 213538, 218504, 361372, 427076, 437008, 722744, 854152, 1174459, 1445488, 1708304, 2348918, 4697836, 9395672, 18791344]

約数ペア:

[(1, 18791344), (2, 9395672), (4, 4697836), (8, 2348918), (11, 1708304), (13, 1445488), (16, 1174459), (22, 854152), (26, 722744), (43, 437008), (44, 427076), (52, 361372), (86, 218504), (88, 213538), (104, 180686), (143, 131408), (172, 109252), (176, 106769), (191, 98384), (208, 90343), (286, 65704), (344, 54626), (382, 49192), (473, 39728), (559, 33616), (572, 32852), (688, 27313), (764, 24596), (946, 19864), (1118, 16808), (1144, 16426), (1528, 12298), (1892, 9932), (2101, 8944), (2236, 8404), (2288, 8213), (2483, 7568), (3056, 6149), (3784, 4966), (4202, 4472)]