21147912

素因数分解:

$2^3\times 3^3\times {\mathrm{19}}^1\times {\mathrm{5153}}^1$

素因数の和:5187

約数の個数: 64

約数和(自身を含む): 61848000

約数和(自身を除く): 40700088

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 24, 27, 36, 38, 54, 57, 72, 76, 108, 114, 152, 171, 216, 228, 342, 456, 513, 684, 1026, 1368, 2052, 4104, 5153, 10306, 15459, 20612, 30918, 41224, 46377, 61836, 92754, 97907, 123672, 139131, 185508, 195814, 278262, 293721, 371016, 391628, 556524, 587442, 783256, 881163, 1113048, 1174884, 1762326, 2349768, 2643489, 3524652, 5286978, 7049304, 10573956, 21147912]

約数ペア:

[(1, 21147912), (2, 10573956), (3, 7049304), (4, 5286978), (6, 3524652), (8, 2643489), (9, 2349768), (12, 1762326), (18, 1174884), (19, 1113048), (24, 881163), (27, 783256), (36, 587442), (38, 556524), (54, 391628), (57, 371016), (72, 293721), (76, 278262), (108, 195814), (114, 185508), (152, 139131), (171, 123672), (216, 97907), (228, 92754), (342, 61836), (456, 46377), (513, 41224), (684, 30918), (1026, 20612), (1368, 15459), (2052, 10306), (4104, 5153)]