18474872

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{401}}^1\times {\mathrm{443}}^1$

素因数の和:863

約数の個数: 32

約数和(自身を含む): 37482480

約数和(自身を除く): 19007608

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 401, 443, 802, 886, 1604, 1772, 3208, 3544, 5213, 5759, 10426, 11518, 20852, 23036, 41704, 46072, 177643, 355286, 710572, 1421144, 2309359, 4618718, 9237436, 18474872]

約数ペア:

[(1, 18474872), (2, 9237436), (4, 4618718), (8, 2309359), (13, 1421144), (26, 710572), (52, 355286), (104, 177643), (401, 46072), (443, 41704), (802, 23036), (886, 20852), (1604, 11518), (1772, 10426), (3208, 5759), (3544, 5213)]