18159568

素因数分解:

$2^4\times 7^1\times {\mathrm{29}}^1\times {\mathrm{5591}}^1$

素因数の和:5635

約数の個数: 40

約数和(自身を含む): 41604480

約数和(自身を除く): 23444912

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 56, 58, 112, 116, 203, 232, 406, 464, 812, 1624, 3248, 5591, 11182, 22364, 39137, 44728, 78274, 89456, 156548, 162139, 313096, 324278, 626192, 648556, 1134973, 1297112, 2269946, 2594224, 4539892, 9079784, 18159568]

約数ペア:

[(1, 18159568), (2, 9079784), (4, 4539892), (7, 2594224), (8, 2269946), (14, 1297112), (16, 1134973), (28, 648556), (29, 626192), (56, 324278), (58, 313096), (112, 162139), (116, 156548), (203, 89456), (232, 78274), (406, 44728), (464, 39137), (812, 22364), (1624, 11182), (3248, 5591)]