19666088

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{263}}^1\times {\mathrm{719}}^1$

素因数の和:1001

約数の個数: 32

約数和(自身を含む): 39916800

約数和(自身を除く): 20250712

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 263, 526, 719, 1052, 1438, 2104, 2876, 3419, 5752, 6838, 9347, 13676, 18694, 27352, 37388, 74776, 189097, 378194, 756388, 1512776, 2458261, 4916522, 9833044, 19666088]

約数ペア:

[(1, 19666088), (2, 9833044), (4, 4916522), (8, 2458261), (13, 1512776), (26, 756388), (52, 378194), (104, 189097), (263, 74776), (526, 37388), (719, 27352), (1052, 18694), (1438, 13676), (2104, 9347), (2876, 6838), (3419, 5752)]