21379581

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{179}}^1\times {\mathrm{577}}^1$

素因数の和:785

約数の個数: 24

約数和(自身を含む): 32460480

約数和(自身を除く): 11080899

約数列:

[1, 3, 9, 23, 69, 179, 207, 537, 577, 1611, 1731, 4117, 5193, 12351, 13271, 37053, 39813, 103283, 119439, 309849, 929547, 2375509, 7126527, 21379581]

約数ペア:

[(1, 21379581), (3, 7126527), (9, 2375509), (23, 929547), (69, 309849), (179, 119439), (207, 103283), (537, 39813), (577, 37053), (1611, 13271), (1731, 12351), (4117, 5193)]