19712470

素因数分解:

$2^1\times 5^1\times {\mathrm{307}}^1\times {\mathrm{6421}}^1$

素因数の和:6735

約数の個数: 16

約数和(自身を含む): 35603568

約数和(自身を除く): 15891098

約数列:

[1, 2, 5, 10, 307, 614, 1535, 3070, 6421, 12842, 32105, 64210, 1971247, 3942494, 9856235, 19712470]

約数ペア:

[(1, 19712470), (2, 9856235), (5, 3942494), (10, 1971247), (307, 64210), (614, 32105), (1535, 12842), (3070, 6421)]