18778028

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{401}}^1\times {\mathrm{509}}^1$

素因数の和:937

約数の個数: 24

約数和(自身を含む): 34443360

約数和(自身を除く): 15665332

約数列:

[1, 2, 4, 23, 46, 92, 401, 509, 802, 1018, 1604, 2036, 9223, 11707, 18446, 23414, 36892, 46828, 204109, 408218, 816436, 4694507, 9389014, 18778028]

約数ペア:

[(1, 18778028), (2, 9389014), (4, 4694507), (23, 816436), (46, 408218), (92, 204109), (401, 46828), (509, 36892), (802, 23414), (1018, 18446), (1604, 11707), (2036, 9223)]