21552821

素因数分解:

${\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{1259}}^1$

素因数の和:1348

約数の個数: 16

約数和(自身を含む): 24494400

約数和(自身を除く): 2941579

約数列:

[1, 17, 19, 53, 323, 901, 1007, 1259, 17119, 21403, 23921, 66727, 406657, 1134359, 1267813, 21552821]

約数ペア:

[(1, 21552821), (17, 1267813), (19, 1134359), (53, 406657), (323, 66727), (901, 23921), (1007, 21403), (1259, 17119)]