21761982

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{839}}^1$

素因数の和:989

約数の個数: 48

約数和(自身を含む): 51891840

約数和(自身を除く): 30129858

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 131, 198, 262, 393, 786, 839, 1179, 1441, 1678, 2358, 2517, 2882, 4323, 5034, 7551, 8646, 9229, 12969, 15102, 18458, 25938, 27687, 55374, 83061, 109909, 166122, 219818, 329727, 659454, 989181, 1208999, 1978362, 2417998, 3626997, 7253994, 10880991, 21761982]

約数ペア:

[(1, 21761982), (2, 10880991), (3, 7253994), (6, 3626997), (9, 2417998), (11, 1978362), (18, 1208999), (22, 989181), (33, 659454), (66, 329727), (99, 219818), (131, 166122), (198, 109909), (262, 83061), (393, 55374), (786, 27687), (839, 25938), (1179, 18458), (1441, 15102), (1678, 12969), (2358, 9229), (2517, 8646), (2882, 7551), (4323, 5034)]