21553790

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{6673}}^1$

素因数の和:6716

約数の個数: 32

約数和(自身を含む): 43247520

約数和(自身を除く): 21693730

約数列:

[1, 2, 5, 10, 17, 19, 34, 38, 85, 95, 170, 190, 323, 646, 1615, 3230, 6673, 13346, 33365, 66730, 113441, 126787, 226882, 253574, 567205, 633935, 1134410, 1267870, 2155379, 4310758, 10776895, 21553790]

約数ペア:

[(1, 21553790), (2, 10776895), (5, 4310758), (10, 2155379), (17, 1267870), (19, 1134410), (34, 633935), (38, 567205), (85, 253574), (95, 226882), (170, 126787), (190, 113441), (323, 66730), (646, 33365), (1615, 13346), (3230, 6673)]