21100563

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{1627}}^1$

素因数の和:1775

約数の個数: 24

約数和(自身を含む): 33523776

約数和(自身を除く): 12423213

約数列:

[1, 3, 9, 11, 33, 99, 131, 393, 1179, 1441, 1627, 4323, 4881, 12969, 14643, 17897, 53691, 161073, 213137, 639411, 1918233, 2344507, 7033521, 21100563]

約数ペア:

[(1, 21100563), (3, 7033521), (9, 2344507), (11, 1918233), (33, 639411), (99, 213137), (131, 161073), (393, 53691), (1179, 17897), (1441, 14643), (1627, 12969), (4323, 4881)]