81387978

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{66821}}^1$

素因数の和:66862

約数の個数: 32

約数和(自身を含む): 192447360

約数和(自身を除く): 111059382

約数列:

[1, 2, 3, 6, 7, 14, 21, 29, 42, 58, 87, 174, 203, 406, 609, 1218, 66821, 133642, 200463, 400926, 467747, 935494, 1403241, 1937809, 2806482, 3875618, 5813427, 11626854, 13564663, 27129326, 40693989, 81387978]

約数ペア:

[(1, 81387978), (2, 40693989), (3, 27129326), (6, 13564663), (7, 11626854), (14, 5813427), (21, 3875618), (29, 2806482), (42, 1937809), (58, 1403241), (87, 935494), (174, 467747), (203, 400926), (406, 200463), (609, 133642), (1218, 66821)]