21419772

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{263}}^1\times {\mathrm{617}}^1$

素因数の和:898

約数の個数: 48

約数和(自身を含む): 54819072

約数和(自身を除く): 33399300

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 132, 263, 526, 617, 789, 1052, 1234, 1578, 1851, 2468, 2893, 3156, 3702, 5786, 6787, 7404, 8679, 11572, 13574, 17358, 20361, 27148, 34716, 40722, 81444, 162271, 324542, 486813, 649084, 973626, 1784981, 1947252, 3569962, 5354943, 7139924, 10709886, 21419772]

約数ペア:

[(1, 21419772), (2, 10709886), (3, 7139924), (4, 5354943), (6, 3569962), (11, 1947252), (12, 1784981), (22, 973626), (33, 649084), (44, 486813), (66, 324542), (132, 162271), (263, 81444), (526, 40722), (617, 34716), (789, 27148), (1052, 20361), (1234, 17358), (1578, 13574), (1851, 11572), (2468, 8679), (2893, 7404), (3156, 6787), (3702, 5786)]