643893819

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{421}}^1\times {\mathrm{29989}}^1$

素因数の和:30430

約数の個数: 16

約数和(自身を含む): 911216160

約数和(自身を除く): 267322341

約数列:

[1, 3, 17, 51, 421, 1263, 7157, 21471, 29989, 89967, 509813, 1529439, 12625369, 37876107, 214631273, 643893819]

約数ペア:

[(1, 643893819), (3, 214631273), (17, 37876107), (51, 12625369), (421, 1529439), (1263, 509813), (7157, 89967), (21471, 29989)]