21393361

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{233}}^1\times {\mathrm{491}}^1$

素因数の和:752

約数の個数: 16

約数和(自身を含む): 24867648

約数和(自身を除く): 3474287

約数列:

[1, 11, 17, 187, 233, 491, 2563, 3961, 5401, 8347, 43571, 91817, 114403, 1258433, 1944851, 21393361]

約数ペア:

[(1, 21393361), (11, 1944851), (17, 1258433), (187, 114403), (233, 91817), (491, 43571), (2563, 8347), (3961, 5401)]