21674451

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{401}}^1\times {\mathrm{419}}^1$

素因数の和:866

約数の個数: 16

約数和(自身を含む): 29715840

約数和(自身を除く): 8041389

約数列:

[1, 3, 43, 129, 401, 419, 1203, 1257, 17243, 18017, 51729, 54051, 168019, 504057, 7224817, 21674451]

約数ペア:

[(1, 21674451), (3, 7224817), (43, 504057), (129, 168019), (401, 54051), (419, 51729), (1203, 18017), (1257, 17243)]