18694728

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19973}}^1$

素因数の和:19998

約数の個数: 48

約数和(自身を含む): 54529020

約数和(自身を除く): 35834292

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 72, 78, 104, 117, 156, 234, 312, 468, 936, 19973, 39946, 59919, 79892, 119838, 159784, 179757, 239676, 259649, 359514, 479352, 519298, 719028, 778947, 1038596, 1438056, 1557894, 2077192, 2336841, 3115788, 4673682, 6231576, 9347364, 18694728]

約数ペア:

[(1, 18694728), (2, 9347364), (3, 6231576), (4, 4673682), (6, 3115788), (8, 2336841), (9, 2077192), (12, 1557894), (13, 1438056), (18, 1038596), (24, 778947), (26, 719028), (36, 519298), (39, 479352), (52, 359514), (72, 259649), (78, 239676), (104, 179757), (117, 159784), (156, 119838), (234, 79892), (312, 59919), (468, 39946), (936, 19973)]