18917804

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{103}}^1$

素因数の和:234

約数の個数: 48

約数和(自身を含む): 36848448

約数和(自身を除く): 17930644

約数列:

[1, 2, 4, 17, 34, 37, 68, 73, 74, 103, 146, 148, 206, 292, 412, 629, 1241, 1258, 1751, 2482, 2516, 2701, 3502, 3811, 4964, 5402, 7004, 7519, 7622, 10804, 15038, 15244, 30076, 45917, 64787, 91834, 127823, 129574, 183668, 255646, 259148, 278203, 511292, 556406, 1112812, 4729451, 9458902, 18917804]

約数ペア:

[(1, 18917804), (2, 9458902), (4, 4729451), (17, 1112812), (34, 556406), (37, 511292), (68, 278203), (73, 259148), (74, 255646), (103, 183668), (146, 129574), (148, 127823), (206, 91834), (292, 64787), (412, 45917), (629, 30076), (1241, 15244), (1258, 15038), (1751, 10804), (2482, 7622), (2516, 7519), (2701, 7004), (3502, 5402), (3811, 4964)]