21564378

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^2\times {\mathrm{9901}}^1$

素因数の和:9931

約数の個数: 36

約数和(自身を含む): 51361674

約数和(自身を除く): 29797296

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 121, 198, 242, 363, 726, 1089, 2178, 9901, 19802, 29703, 59406, 89109, 108911, 178218, 217822, 326733, 653466, 980199, 1198021, 1960398, 2396042, 3594063, 7188126, 10782189, 21564378]

約数ペア:

[(1, 21564378), (2, 10782189), (3, 7188126), (6, 3594063), (9, 2396042), (11, 1960398), (18, 1198021), (22, 980199), (33, 653466), (66, 326733), (99, 217822), (121, 178218), (198, 108911), (242, 89109), (363, 59406), (726, 29703), (1089, 19802), (2178, 9901)]