21519918

素因数分解:

$2^1\times 3^4\times 7^2\times {\mathrm{2711}}^1$

素因数の和:2739

約数の個数: 60

約数和(自身を含む): 56113992

約数和(自身を除く): 34594074

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 49, 54, 63, 81, 98, 126, 147, 162, 189, 294, 378, 441, 567, 882, 1134, 1323, 2646, 2711, 3969, 5422, 7938, 8133, 16266, 18977, 24399, 37954, 48798, 56931, 73197, 113862, 132839, 146394, 170793, 219591, 265678, 341586, 398517, 439182, 512379, 797034, 1024758, 1195551, 1537137, 2391102, 3074274, 3586653, 7173306, 10759959, 21519918]

約数ペア:

[(1, 21519918), (2, 10759959), (3, 7173306), (6, 3586653), (7, 3074274), (9, 2391102), (14, 1537137), (18, 1195551), (21, 1024758), (27, 797034), (42, 512379), (49, 439182), (54, 398517), (63, 341586), (81, 265678), (98, 219591), (126, 170793), (147, 146394), (162, 132839), (189, 113862), (294, 73197), (378, 56931), (441, 48798), (567, 37954), (882, 24399), (1134, 18977), (1323, 16266), (2646, 8133), (2711, 7938), (3969, 5422)]