19981353

素因数分解:

$3^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{16127}}^1$

素因数の和:16196

約数の個数: 16

約数和(自身を含む): 30965760

約数和(自身を除く): 10984407

約数列:

[1, 3, 7, 21, 59, 177, 413, 1239, 16127, 48381, 112889, 338667, 951493, 2854479, 6660451, 19981353]

約数ペア:

[(1, 19981353), (3, 6660451), (7, 2854479), (21, 951493), (59, 338667), (177, 112889), (413, 48381), (1239, 16127)]