18886816

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{547}}^1$

素因数の和:653

約数の個数: 48

約数和(自身を含む): 40600224

約数和(自身を除く): 21713408

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 83, 104, 166, 208, 332, 416, 547, 664, 1079, 1094, 1328, 2158, 2188, 2656, 4316, 4376, 7111, 8632, 8752, 14222, 17264, 17504, 28444, 34528, 45401, 56888, 90802, 113776, 181604, 227552, 363208, 590213, 726416, 1180426, 1452832, 2360852, 4721704, 9443408, 18886816]

約数ペア:

[(1, 18886816), (2, 9443408), (4, 4721704), (8, 2360852), (13, 1452832), (16, 1180426), (26, 726416), (32, 590213), (52, 363208), (83, 227552), (104, 181604), (166, 113776), (208, 90802), (332, 56888), (416, 45401), (547, 34528), (664, 28444), (1079, 17504), (1094, 17264), (1328, 14222), (2158, 8752), (2188, 8632), (2656, 7111), (4316, 4376)]