19565541

素因数分解:

$3^2\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{457}}^1$

素因数の和:601

約数の個数: 24

約数和(自身を含む): 29150784

約数和(自身を除く): 9585243

約数列:

[1, 3, 9, 67, 71, 201, 213, 457, 603, 639, 1371, 4113, 4757, 14271, 30619, 32447, 42813, 91857, 97341, 275571, 292023, 2173949, 6521847, 19565541]

約数ペア:

[(1, 19565541), (3, 6521847), (9, 2173949), (67, 292023), (71, 275571), (201, 97341), (213, 91857), (457, 42813), (603, 32447), (639, 30619), (1371, 14271), (4113, 4757)]