18901816

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{199}}^1\times {\mathrm{383}}^1$

素因数の和:619

約数の個数: 32

約数和(自身を含む): 36864000

約数和(自身を除く): 17962184

約数列:

[1, 2, 4, 8, 31, 62, 124, 199, 248, 383, 398, 766, 796, 1532, 1592, 3064, 6169, 11873, 12338, 23746, 24676, 47492, 49352, 76217, 94984, 152434, 304868, 609736, 2362727, 4725454, 9450908, 18901816]

約数ペア:

[(1, 18901816), (2, 9450908), (4, 4725454), (8, 2362727), (31, 609736), (62, 304868), (124, 152434), (199, 94984), (248, 76217), (383, 49352), (398, 47492), (766, 24676), (796, 23746), (1532, 12338), (1592, 11873), (3064, 6169)]