20189985

素因数分解:

$3^1\times 5^1\times {\mathrm{1033}}^1\times {\mathrm{1303}}^1$

素因数の和:2344

約数の個数: 16

約数和(自身を含む): 32360064

約数和(自身を除く): 12170079

約数列:

[1, 3, 5, 15, 1033, 1303, 3099, 3909, 5165, 6515, 15495, 19545, 1345999, 4037997, 6729995, 20189985]

約数ペア:

[(1, 20189985), (3, 6729995), (5, 4037997), (15, 1345999), (1033, 19545), (1303, 15495), (3099, 6515), (3909, 5165)]