21484197

素因数分解:

$3^4\times 7^2\times {\mathrm{5413}}^1$

素因数の和:5439

約数の個数: 30

約数和(自身を含む): 37340358

約数和(自身を除く): 15856161

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 3969, 5413, 16239, 37891, 48717, 113673, 146151, 265237, 341019, 438453, 795711, 1023057, 2387133, 3069171, 7161399, 21484197]

約数ペア:

[(1, 21484197), (3, 7161399), (7, 3069171), (9, 2387133), (21, 1023057), (27, 795711), (49, 438453), (63, 341019), (81, 265237), (147, 146151), (189, 113673), (441, 48717), (567, 37891), (1323, 16239), (3969, 5413)]