18722848

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{271}}^1$

素因数の和:425

約数の個数: 48

約数和(自身を含む): 39481344

約数和(自身を除く): 20758496

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 127, 136, 254, 271, 272, 508, 542, 544, 1016, 1084, 2032, 2159, 2168, 4064, 4318, 4336, 4607, 8636, 8672, 9214, 17272, 18428, 34417, 34544, 36856, 68834, 69088, 73712, 137668, 147424, 275336, 550672, 585089, 1101344, 1170178, 2340356, 4680712, 9361424, 18722848]

約数ペア:

[(1, 18722848), (2, 9361424), (4, 4680712), (8, 2340356), (16, 1170178), (17, 1101344), (32, 585089), (34, 550672), (68, 275336), (127, 147424), (136, 137668), (254, 73712), (271, 69088), (272, 68834), (508, 36856), (542, 34544), (544, 34417), (1016, 18428), (1084, 17272), (2032, 9214), (2159, 8672), (2168, 8636), (4064, 4607), (4318, 4336)]