19123312

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{91939}}^1$

素因数の和:91960

約数の個数: 20

約数和(自身を含む): 39901960

約数和(自身を除く): 20778648

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 91939, 183878, 367756, 735512, 1195207, 1471024, 2390414, 4780828, 9561656, 19123312]

約数ペア:

[(1, 19123312), (2, 9561656), (4, 4780828), (8, 2390414), (13, 1471024), (16, 1195207), (26, 735512), (52, 367756), (104, 183878), (208, 91939)]