21401163

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^2\times {\mathrm{941}}^1$

素因数の和:992

約数の個数: 36

約数和(自身を含む): 37325808

約数和(自身を除く): 15924645

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 361, 399, 941, 1083, 1197, 2527, 2823, 3249, 6587, 7581, 8469, 17879, 19761, 22743, 53637, 59283, 125153, 160911, 339701, 375459, 1019103, 1126377, 2377907, 3057309, 7133721, 21401163]

約数ペア:

[(1, 21401163), (3, 7133721), (7, 3057309), (9, 2377907), (19, 1126377), (21, 1019103), (57, 375459), (63, 339701), (133, 160911), (171, 125153), (361, 59283), (399, 53637), (941, 22743), (1083, 19761), (1197, 17879), (2527, 8469), (2823, 7581), (3249, 6587)]