20306439

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{113}}^1\times {\mathrm{487}}^1$

素因数の和:647

約数の個数: 24

約数和(自身を含む): 30375072

約数和(自身を除く): 10068633

約数列:

[1, 3, 9, 41, 113, 123, 339, 369, 487, 1017, 1461, 4383, 4633, 13899, 19967, 41697, 55031, 59901, 165093, 179703, 495279, 2256271, 6768813, 20306439]

約数ペア:

[(1, 20306439), (3, 6768813), (9, 2256271), (41, 495279), (113, 179703), (123, 165093), (339, 59901), (369, 55031), (487, 41697), (1017, 19967), (1461, 13899), (4383, 4633)]