21221321

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{283}}^1\times {\mathrm{401}}^1$

素因数の和:712

約数の個数: 16

約数和(自身を含む): 24660288

約数和(自身を除く): 3438967

約数列:

[1, 11, 17, 187, 283, 401, 3113, 4411, 4811, 6817, 52921, 74987, 113483, 1248313, 1929211, 21221321]

約数ペア:

[(1, 21221321), (11, 1929211), (17, 1248313), (187, 113483), (283, 74987), (401, 52921), (3113, 6817), (4411, 4811)]