18387964

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{17749}}^1$

素因数の和:17797

約数の個数: 24

約数和(自身を含む): 37772000

約数和(自身を除く): 19384036

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 148, 259, 518, 1036, 17749, 35498, 70996, 124243, 248486, 496972, 656713, 1313426, 2626852, 4596991, 9193982, 18387964]

約数ペア:

[(1, 18387964), (2, 9193982), (4, 4596991), (7, 2626852), (14, 1313426), (28, 656713), (37, 496972), (74, 248486), (148, 124243), (259, 70996), (518, 35498), (1036, 17749)]