19017884

素因数分解:

$2^2\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{823}}^1$

素因数の和:989

約数の個数: 24

約数和(自身を含む): 34261920

約数和(自身を除く): 15244036

約数列:

[1, 2, 4, 53, 106, 109, 212, 218, 436, 823, 1646, 3292, 5777, 11554, 23108, 43619, 87238, 89707, 174476, 179414, 358828, 4754471, 9508942, 19017884]

約数ペア:

[(1, 19017884), (2, 9508942), (4, 4754471), (53, 358828), (106, 179414), (109, 174476), (212, 89707), (218, 87238), (436, 43619), (823, 23108), (1646, 11554), (3292, 5777)]