20688870111

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{10826201}}^1$

素因数の和:10826231

約数の個数: 24

約数和(自身を含む): 34557236784

約数和(自身を除く): 13868366673

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 10826201, 32478603, 75783407, 140740613, 227350221, 422221839, 530483849, 985184291, 1591451547, 2955552873, 6896290037, 20688870111]

約数ペア:

[(1, 20688870111), (3, 6896290037), (7, 2955552873), (13, 1591451547), (21, 985184291), (39, 530483849), (49, 422221839), (91, 227350221), (147, 140740613), (273, 75783407), (637, 32478603), (1911, 10826201)]