20996949918

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{839}}^1\times {\mathrm{3701}}^1$

素因数の和:4582

約数の個数: 96

約数和(自身を含む): 51048506880

約数和(自身を除く): 30051556962

約数列:

[1, 2, 3, 6, 7, 14, 21, 23, 42, 46, 49, 69, 98, 138, 147, 161, 294, 322, 483, 839, 966, 1127, 1678, 2254, 2517, 3381, 3701, 5034, 5873, 6762, 7402, 11103, 11746, 17619, 19297, 22206, 25907, 35238, 38594, 41111, 51814, 57891, 77721, 82222, 85123, 115782, 123333, 135079, 155442, 170246, 181349, 246666, 255369, 270158, 362698, 405237, 510738, 544047, 595861, 810474, 945553, 1088094, 1191722, 1787583, 1891106, 2836659, 3105139, 3575166, 4171027, 5673318, 6210278, 8342054, 9315417, 12513081, 18630834, 21735973, 25026162, 43471946, 65207919, 71418197, 130415838, 142836394, 152151811, 214254591, 304303622, 428509182, 456455433, 499927379, 912910866, 999854758, 1499782137, 2999564274, 3499491653, 6998983306, 10498474959, 20996949918]

約数ペア:

[(1, 20996949918), (2, 10498474959), (3, 6998983306), (6, 3499491653), (7, 2999564274), (14, 1499782137), (21, 999854758), (23, 912910866), (42, 499927379), (46, 456455433), (49, 428509182), (69, 304303622), (98, 214254591), (138, 152151811), (147, 142836394), (161, 130415838), (294, 71418197), (322, 65207919), (483, 43471946), (839, 25026162), (966, 21735973), (1127, 18630834), (1678, 12513081), (2254, 9315417), (2517, 8342054), (3381, 6210278), (3701, 5673318), (5034, 4171027), (5873, 3575166), (6762, 3105139), (7402, 2836659), (11103, 1891106), (11746, 1787583), (17619, 1191722), (19297, 1088094), (22206, 945553), (25907, 810474), (35238, 595861), (38594, 544047), (41111, 510738), (51814, 405237), (57891, 362698), (77721, 270158), (82222, 255369), (85123, 246666), (115782, 181349), (123333, 170246), (135079, 155442)]