18436336

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{211}}^1$

素因数の和:389

約数の個数: 40

約数和(自身を含む): 37013504

約数和(自身を除く): 18577168

約数列:

[1, 2, 4, 8, 16, 43, 86, 127, 172, 211, 254, 344, 422, 508, 688, 844, 1016, 1688, 2032, 3376, 5461, 9073, 10922, 18146, 21844, 26797, 36292, 43688, 53594, 72584, 87376, 107188, 145168, 214376, 428752, 1152271, 2304542, 4609084, 9218168, 18436336]

約数ペア:

[(1, 18436336), (2, 9218168), (4, 4609084), (8, 2304542), (16, 1152271), (43, 428752), (86, 214376), (127, 145168), (172, 107188), (211, 87376), (254, 72584), (344, 53594), (422, 43688), (508, 36292), (688, 26797), (844, 21844), (1016, 18146), (1688, 10922), (2032, 9073), (3376, 5461)]