216812211

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{7057}}^1$

素因数の和:7104

約数の個数: 48

約数和(自身を含む): 386213760

約数和(自身を除く): 169401549

約数列:

[1, 3, 7, 11, 19, 21, 33, 49, 57, 77, 133, 147, 209, 231, 399, 539, 627, 931, 1463, 1617, 2793, 4389, 7057, 10241, 21171, 30723, 49399, 77627, 134083, 148197, 232881, 345793, 402249, 543389, 938581, 1037379, 1474913, 1630167, 2815743, 3803723, 4424739, 6570067, 10324391, 11411169, 19710201, 30973173, 72270737, 216812211]

約数ペア:

[(1, 216812211), (3, 72270737), (7, 30973173), (11, 19710201), (19, 11411169), (21, 10324391), (33, 6570067), (49, 4424739), (57, 3803723), (77, 2815743), (133, 1630167), (147, 1474913), (209, 1037379), (231, 938581), (399, 543389), (539, 402249), (627, 345793), (931, 232881), (1463, 148197), (1617, 134083), (2793, 77627), (4389, 49399), (7057, 30723), (10241, 21171)]