21046840

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{22877}}^1$

素因数の和:22911

約数の個数: 32

約数和(自身を含む): 49416480

約数和(自身を除く): 28369640

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 22877, 45754, 91508, 114385, 183016, 228770, 457540, 526171, 915080, 1052342, 2104684, 2630855, 4209368, 5261710, 10523420, 21046840]

約数ペア:

[(1, 21046840), (2, 10523420), (4, 5261710), (5, 4209368), (8, 2630855), (10, 2104684), (20, 1052342), (23, 915080), (40, 526171), (46, 457540), (92, 228770), (115, 183016), (184, 114385), (230, 91508), (460, 45754), (920, 22877)]