18789808

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{28643}}^1$

素因数の和:28692

約数の個数: 20

約数和(自身を含む): 37294488

約数和(自身を除く): 18504680

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 28643, 57286, 114572, 229144, 458288, 1174363, 2348726, 4697452, 9394904, 18789808]

約数ペア:

[(1, 18789808), (2, 9394904), (4, 4697452), (8, 2348726), (16, 1174363), (41, 458288), (82, 229144), (164, 114572), (328, 57286), (656, 28643)]