18680584

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{337}}^1$

素因数の和:410

約数の個数: 48

約数和(自身を含む): 38968020

約数和(自身を除く): 20287436

約数列:

[1, 2, 4, 8, 13, 26, 41, 52, 82, 104, 164, 169, 328, 337, 338, 533, 674, 676, 1066, 1348, 1352, 2132, 2696, 4264, 4381, 6929, 8762, 13817, 13858, 17524, 27634, 27716, 35048, 55268, 55432, 56953, 110536, 113906, 179621, 227812, 359242, 455624, 718484, 1436968, 2335073, 4670146, 9340292, 18680584]

約数ペア:

[(1, 18680584), (2, 9340292), (4, 4670146), (8, 2335073), (13, 1436968), (26, 718484), (41, 455624), (52, 359242), (82, 227812), (104, 179621), (164, 113906), (169, 110536), (328, 56953), (337, 55432), (338, 55268), (533, 35048), (674, 27716), (676, 27634), (1066, 17524), (1348, 13858), (1352, 13817), (2132, 8762), (2696, 6929), (4264, 4381)]