21519470

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{1777}}^1$

素因数の和:1964

約数の個数: 32

約数和(自身を含む): 44549568

約数和(自身を除く): 23030098

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 173, 346, 865, 1211, 1730, 1777, 2422, 3554, 6055, 8885, 12110, 12439, 17770, 24878, 62195, 124390, 307421, 614842, 1537105, 2151947, 3074210, 4303894, 10759735, 21519470]

約数ペア:

[(1, 21519470), (2, 10759735), (5, 4303894), (7, 3074210), (10, 2151947), (14, 1537105), (35, 614842), (70, 307421), (173, 124390), (346, 62195), (865, 24878), (1211, 17770), (1730, 12439), (1777, 12110), (2422, 8885), (3554, 6055)]