20996821827

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{317}}^1\times {\mathrm{443}}^1\times {\mathrm{449}}^1$

素因数の和:1252

約数の個数: 48

約数和(自身を含む): 31386981600

約数和(自身を除く): 10390159773

約数列:

[1, 3, 9, 37, 111, 317, 333, 443, 449, 951, 1329, 1347, 2853, 3987, 4041, 11729, 16391, 16613, 35187, 49173, 49839, 105561, 140431, 142333, 147519, 149517, 198907, 421293, 426999, 596721, 1263879, 1280997, 1790163, 5195947, 5266321, 7359559, 15587841, 15798963, 22078677, 46763523, 47396889, 63053519, 66236031, 189160557, 567481671, 2332980203, 6998940609, 20996821827]

約数ペア:

[(1, 20996821827), (3, 6998940609), (9, 2332980203), (37, 567481671), (111, 189160557), (317, 66236031), (333, 63053519), (443, 47396889), (449, 46763523), (951, 22078677), (1329, 15798963), (1347, 15587841), (2853, 7359559), (3987, 5266321), (4041, 5195947), (11729, 1790163), (16391, 1280997), (16613, 1263879), (35187, 596721), (49173, 426999), (49839, 421293), (105561, 198907), (140431, 149517), (142333, 147519)]