18564784

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{5347}}^1$

素因数の和:5393

約数の個数: 40

約数和(自身を含む): 42441728

約数和(自身を除く): 23876944

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 56, 62, 112, 124, 217, 248, 434, 496, 868, 1736, 3472, 5347, 10694, 21388, 37429, 42776, 74858, 85552, 149716, 165757, 299432, 331514, 598864, 663028, 1160299, 1326056, 2320598, 2652112, 4641196, 9282392, 18564784]

約数ペア:

[(1, 18564784), (2, 9282392), (4, 4641196), (7, 2652112), (8, 2320598), (14, 1326056), (16, 1160299), (28, 663028), (31, 598864), (56, 331514), (62, 299432), (112, 165757), (124, 149716), (217, 85552), (248, 74858), (434, 42776), (496, 37429), (868, 21388), (1736, 10694), (3472, 5347)]