213702979

素因数分解:

$7^1\times {\mathrm{79}}^1\times {\mathrm{601}}^1\times {\mathrm{643}}^1$

素因数の和:1330

約数の個数: 16

約数和(自身を含む): 248120320

約数和(自身を除く): 34417341

約数列:

[1, 7, 79, 553, 601, 643, 4207, 4501, 47479, 50797, 332353, 355579, 386443, 2705101, 30528997, 213702979]

約数ペア:

[(1, 213702979), (7, 30528997), (79, 2705101), (553, 386443), (601, 355579), (643, 332353), (4207, 50797), (4501, 47479)]