21533267

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{1693}}^1$

素因数の和:1802

約数の個数: 16

約数和(自身を含む): 26019840

約数和(自身を除く): 4486573

約数列:

[1, 7, 23, 79, 161, 553, 1693, 1817, 11851, 12719, 38939, 133747, 272573, 936229, 3076181, 21533267]

約数ペア:

[(1, 21533267), (7, 3076181), (23, 936229), (79, 272573), (161, 133747), (553, 38939), (1693, 12719), (1817, 11851)]