19219798

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{19979}}^1$

素因数の和:20031

約数の個数: 16

約数和(自身を含む): 31888080

約数和(自身を除く): 12668282

約数列:

[1, 2, 13, 26, 37, 74, 481, 962, 19979, 39958, 259727, 519454, 739223, 1478446, 9609899, 19219798]

約数ペア:

[(1, 19219798), (2, 9609899), (13, 1478446), (26, 739223), (37, 519454), (74, 259727), (481, 39958), (962, 19979)]