201021779

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{6449}}^1$

素因数の和:6590

約数の個数: 16

約数和(自身を含む): 236740800

約数和(自身を除く): 35719021

約数列:

[1, 7, 61, 73, 427, 511, 4453, 6449, 31171, 45143, 393389, 470777, 2753723, 3295439, 28717397, 201021779]

約数ペア:

[(1, 201021779), (7, 28717397), (61, 3295439), (73, 2753723), (427, 470777), (511, 393389), (4453, 45143), (6449, 31171)]