19219538

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{17191}}^1$

素因数の和:17249

約数の個数: 16

約数和(自身を含む): 31770816

約数和(自身を除く): 12551278

約数列:

[1, 2, 13, 26, 43, 86, 559, 1118, 17191, 34382, 223483, 446966, 739213, 1478426, 9609769, 19219538]

約数ペア:

[(1, 19219538), (2, 9609769), (13, 1478426), (26, 739213), (43, 446966), (86, 223483), (559, 34382), (1118, 17191)]