18961844

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{457}}^1$

素因数の和:536

約数の個数: 48

約数和(自身を含む): 38779776

約数和(自身を除く): 19817932

約数列:

[1, 2, 4, 11, 22, 23, 41, 44, 46, 82, 92, 164, 253, 451, 457, 506, 902, 914, 943, 1012, 1804, 1828, 1886, 3772, 5027, 10054, 10373, 10511, 18737, 20108, 20746, 21022, 37474, 41492, 42044, 74948, 115621, 206107, 231242, 412214, 430951, 462484, 824428, 861902, 1723804, 4740461, 9480922, 18961844]

約数ペア:

[(1, 18961844), (2, 9480922), (4, 4740461), (11, 1723804), (22, 861902), (23, 824428), (41, 462484), (44, 430951), (46, 412214), (82, 231242), (92, 206107), (164, 115621), (253, 74948), (451, 42044), (457, 41492), (506, 37474), (902, 21022), (914, 20746), (943, 20108), (1012, 18737), (1804, 10511), (1828, 10373), (1886, 10054), (3772, 5027)]