18870836

素因数分解:

$2^2\times {\mathrm{103}}^1\times {\mathrm{163}}^1\times {\mathrm{281}}^1$

素因数の和:551

約数の個数: 24

約数和(自身を含む): 33668544

約数和(自身を除く): 14797708

約数列:

[1, 2, 4, 103, 163, 206, 281, 326, 412, 562, 652, 1124, 16789, 28943, 33578, 45803, 57886, 67156, 91606, 115772, 183212, 4717709, 9435418, 18870836]

約数ペア:

[(1, 18870836), (2, 9435418), (4, 4717709), (103, 183212), (163, 115772), (206, 91606), (281, 67156), (326, 57886), (412, 45803), (562, 33578), (652, 28943), (1124, 16789)]