18360784

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{2153}}^1$

素因数の和:2215

約数の個数: 40

約数和(自身を含む): 39263112

約数和(自身を除く): 20902328

約数列:

[1, 2, 4, 8, 13, 16, 26, 41, 52, 82, 104, 164, 208, 328, 533, 656, 1066, 2132, 2153, 4264, 4306, 8528, 8612, 17224, 27989, 34448, 55978, 88273, 111956, 176546, 223912, 353092, 447824, 706184, 1147549, 1412368, 2295098, 4590196, 9180392, 18360784]

約数ペア:

[(1, 18360784), (2, 9180392), (4, 4590196), (8, 2295098), (13, 1412368), (16, 1147549), (26, 706184), (41, 447824), (52, 353092), (82, 223912), (104, 176546), (164, 111956), (208, 88273), (328, 55978), (533, 34448), (656, 27989), (1066, 17224), (2132, 8612), (2153, 8528), (4264, 4306)]