21073008

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{373}}^1$

素因数の和:502

約数の個数: 80

約数和(自身を含む): 60103296

約数和(自身を除く): 39030288

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 33, 44, 48, 66, 88, 107, 132, 176, 214, 264, 321, 373, 428, 528, 642, 746, 856, 1119, 1177, 1284, 1492, 1712, 2238, 2354, 2568, 2984, 3531, 4103, 4476, 4708, 5136, 5968, 7062, 8206, 8952, 9416, 12309, 14124, 16412, 17904, 18832, 24618, 28248, 32824, 39911, 49236, 56496, 65648, 79822, 98472, 119733, 159644, 196944, 239466, 319288, 439021, 478932, 638576, 878042, 957864, 1317063, 1756084, 1915728, 2634126, 3512168, 5268252, 7024336, 10536504, 21073008]

約数ペア:

[(1, 21073008), (2, 10536504), (3, 7024336), (4, 5268252), (6, 3512168), (8, 2634126), (11, 1915728), (12, 1756084), (16, 1317063), (22, 957864), (24, 878042), (33, 638576), (44, 478932), (48, 439021), (66, 319288), (88, 239466), (107, 196944), (132, 159644), (176, 119733), (214, 98472), (264, 79822), (321, 65648), (373, 56496), (428, 49236), (528, 39911), (642, 32824), (746, 28248), (856, 24618), (1119, 18832), (1177, 17904), (1284, 16412), (1492, 14124), (1712, 12309), (2238, 9416), (2354, 8952), (2568, 8206), (2984, 7062), (3531, 5968), (4103, 5136), (4476, 4708)]