21049769

素因数分解:

${\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{541}}^1$

素因数の和:668

約数の個数: 16

約数和(自身を含む): 23583504

約数和(自身を除く): 2533735

約数列:

[1, 13, 41, 73, 533, 541, 949, 2993, 7033, 22181, 38909, 39493, 288353, 513409, 1619213, 21049769]

約数ペア:

[(1, 21049769), (13, 1619213), (41, 513409), (73, 288353), (533, 39493), (541, 38909), (949, 22181), (2993, 7033)]