21671244

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{3739}}^1$

素因数の和:3779

約数の個数: 72

約数和(自身を含む): 65345280

約数和(自身を除く): 43674036

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 23, 28, 36, 42, 46, 63, 69, 84, 92, 126, 138, 161, 207, 252, 276, 322, 414, 483, 644, 828, 966, 1449, 1932, 2898, 3739, 5796, 7478, 11217, 14956, 22434, 26173, 33651, 44868, 52346, 67302, 78519, 85997, 104692, 134604, 157038, 171994, 235557, 257991, 314076, 343988, 471114, 515982, 601979, 773973, 942228, 1031964, 1203958, 1547946, 1805937, 2407916, 3095892, 3611874, 5417811, 7223748, 10835622, 21671244]

約数ペア:

[(1, 21671244), (2, 10835622), (3, 7223748), (4, 5417811), (6, 3611874), (7, 3095892), (9, 2407916), (12, 1805937), (14, 1547946), (18, 1203958), (21, 1031964), (23, 942228), (28, 773973), (36, 601979), (42, 515982), (46, 471114), (63, 343988), (69, 314076), (84, 257991), (92, 235557), (126, 171994), (138, 157038), (161, 134604), (207, 104692), (252, 85997), (276, 78519), (322, 67302), (414, 52346), (483, 44868), (644, 33651), (828, 26173), (966, 22434), (1449, 14956), (1932, 11217), (2898, 7478), (3739, 5796)]