66990567

素因数分解:

$3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{491}}^1$

素因数の和:663

約数の個数: 32

約数和(自身を含む): 104855040

約数和(自身を除く): 37864473

約数列:

[1, 3, 7, 21, 73, 89, 219, 267, 491, 511, 623, 1473, 1533, 1869, 3437, 6497, 10311, 19491, 35843, 43699, 45479, 107529, 131097, 136437, 250901, 305893, 752703, 917679, 3190027, 9570081, 22330189, 66990567]

約数ペア:

[(1, 66990567), (3, 22330189), (7, 9570081), (21, 3190027), (73, 917679), (89, 752703), (219, 305893), (267, 250901), (491, 136437), (511, 131097), (623, 107529), (1473, 45479), (1533, 43699), (1869, 35843), (3437, 19491), (6497, 10311)]