20588013

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{257}}^1$

素因数の和:335

約数の個数: 40

約数和(自身を含む): 32966208

約数和(自身を除く): 12378195

約数列:

[1, 3, 9, 23, 27, 43, 69, 81, 129, 207, 257, 387, 621, 771, 989, 1161, 1863, 2313, 2967, 3483, 5911, 6939, 8901, 11051, 17733, 20817, 26703, 33153, 53199, 80109, 99459, 159597, 254173, 298377, 478791, 762519, 895131, 2287557, 6862671, 20588013]

約数ペア:

[(1, 20588013), (3, 6862671), (9, 2287557), (23, 895131), (27, 762519), (43, 478791), (69, 298377), (81, 254173), (129, 159597), (207, 99459), (257, 80109), (387, 53199), (621, 33153), (771, 26703), (989, 20817), (1161, 17733), (1863, 11051), (2313, 8901), (2967, 6939), (3483, 5911)]