21227336

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{401}}^1\times {\mathrm{509}}^1$

素因数の和:929

約数の個数: 32

約数和(自身を含む): 43054200

約数和(自身を除く): 21826864

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 401, 509, 802, 1018, 1604, 2036, 3208, 4072, 5213, 6617, 10426, 13234, 20852, 26468, 41704, 52936, 204109, 408218, 816436, 1632872, 2653417, 5306834, 10613668, 21227336]

約数ペア:

[(1, 21227336), (2, 10613668), (4, 5306834), (8, 2653417), (13, 1632872), (26, 816436), (52, 408218), (104, 204109), (401, 52936), (509, 41704), (802, 26468), (1018, 20852), (1604, 13234), (2036, 10426), (3208, 6617), (4072, 5213)]