19983717

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{170801}}^1$

素因数の和:170820

約数の個数: 12

約数和(自身を含む): 31085964

約数和(自身を除く): 11102247

約数列:

[1, 3, 9, 13, 39, 117, 170801, 512403, 1537209, 2220413, 6661239, 19983717]

約数ペア:

[(1, 19983717), (3, 6661239), (9, 2220413), (13, 1537209), (39, 512403), (117, 170801)]