20129067

素因数分解:

$3^4\times 7^1\times {\mathrm{131}}^1\times {\mathrm{271}}^1$

素因数の和:421

約数の個数: 40

約数和(自身を含む): 34755072

約数和(自身を除く): 14626005

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 131, 189, 271, 393, 567, 813, 917, 1179, 1897, 2439, 2751, 3537, 5691, 7317, 8253, 10611, 17073, 21951, 24759, 35501, 51219, 74277, 106503, 153657, 248507, 319509, 745521, 958527, 2236563, 2875581, 6709689, 20129067]

約数ペア:

[(1, 20129067), (3, 6709689), (7, 2875581), (9, 2236563), (21, 958527), (27, 745521), (63, 319509), (81, 248507), (131, 153657), (189, 106503), (271, 74277), (393, 51219), (567, 35501), (813, 24759), (917, 21951), (1179, 17073), (1897, 10611), (2439, 8253), (2751, 7317), (3537, 5691)]