199980021

素因数分解:

$3^1\times {\mathrm{61}}^1\times {\mathrm{151}}^1\times {\mathrm{7237}}^1$

素因数の和:7452

約数の個数: 16

約数和(自身を含む): 272843648

約数和(自身を除く): 72863627

約数列:

[1, 3, 61, 151, 183, 453, 7237, 9211, 21711, 27633, 441457, 1092787, 1324371, 3278361, 66660007, 199980021]

約数ペア:

[(1, 199980021), (3, 66660007), (61, 3278361), (151, 1324371), (183, 1092787), (453, 441457), (7237, 27633), (9211, 21711)]