18293872

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{353}}^1$

素因数の和:481

約数の個数: 40

約数和(自身を含む): 36872640

約数和(自身を除く): 18578768

約数列:

[1, 2, 4, 8, 16, 41, 79, 82, 158, 164, 316, 328, 353, 632, 656, 706, 1264, 1412, 2824, 3239, 5648, 6478, 12956, 14473, 25912, 27887, 28946, 51824, 55774, 57892, 111548, 115784, 223096, 231568, 446192, 1143367, 2286734, 4573468, 9146936, 18293872]

約数ペア:

[(1, 18293872), (2, 9146936), (4, 4573468), (8, 2286734), (16, 1143367), (41, 446192), (79, 231568), (82, 223096), (158, 115784), (164, 111548), (316, 57892), (328, 55774), (353, 51824), (632, 28946), (656, 27887), (706, 25912), (1264, 14473), (1412, 12956), (2824, 6478), (3239, 5648)]