18210438

素因数分解:

$2^1\times 3^2\times {\mathrm{37}}^2\times {\mathrm{739}}^1$

素因数の和:821

約数の個数: 36

約数和(自身を含む): 40606020

約数和(自身を除く): 22395582

約数列:

[1, 2, 3, 6, 9, 18, 37, 74, 111, 222, 333, 666, 739, 1369, 1478, 2217, 2738, 4107, 4434, 6651, 8214, 12321, 13302, 24642, 27343, 54686, 82029, 164058, 246087, 492174, 1011691, 2023382, 3035073, 6070146, 9105219, 18210438]

約数ペア:

[(1, 18210438), (2, 9105219), (3, 6070146), (6, 3035073), (9, 2023382), (18, 1011691), (37, 492174), (74, 246087), (111, 164058), (222, 82029), (333, 54686), (666, 27343), (739, 24642), (1369, 13302), (1478, 12321), (2217, 8214), (2738, 6651), (4107, 4434)]