19419316

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{127}}^2$

素因数の和:308

約数の個数: 36

約数和(自身を含む): 40057248

約数和(自身を除く): 20637932

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 127, 172, 254, 301, 508, 602, 889, 1204, 1778, 3556, 5461, 10922, 16129, 21844, 32258, 38227, 64516, 76454, 112903, 152908, 225806, 451612, 693547, 1387094, 2774188, 4854829, 9709658, 19419316]

約数ペア:

[(1, 19419316), (2, 9709658), (4, 4854829), (7, 2774188), (14, 1387094), (28, 693547), (43, 451612), (86, 225806), (127, 152908), (172, 112903), (254, 76454), (301, 64516), (508, 38227), (602, 32258), (889, 21844), (1204, 16129), (1778, 10922), (3556, 5461)]