121520721

素因数分解:

$3^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{53089}}^1$

素因数の和:53208

約数の個数: 16

約数和(自身を含む): 186876800

約数和(自身を除く): 65356079

約数列:

[1, 3, 7, 21, 109, 327, 763, 2289, 53089, 159267, 371623, 1114869, 5786701, 17360103, 40506907, 121520721]

約数ペア:

[(1, 121520721), (3, 40506907), (7, 17360103), (21, 5786701), (109, 1114869), (327, 371623), (763, 159267), (2289, 53089)]