21000786617

素因数分解:

${\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{1933}}^1\times {\mathrm{6653}}^1$

素因数の和:8680

約数の個数: 16

約数和(自身を含む): 22237348608

約数和(自身を除く): 1236561991

約数列:

[1, 23, 71, 1633, 1933, 6653, 44459, 137243, 153019, 472363, 3156589, 10864349, 12860249, 295785727, 913077679, 21000786617]

約数ペア:

[(1, 21000786617), (23, 913077679), (71, 295785727), (1633, 12860249), (1933, 10864349), (6653, 3156589), (44459, 472363), (137243, 153019)]