201813801

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^2\times {\mathrm{3803}}^1$

素因数の和:3858

約数の個数: 36

約数和(自身を含む): 330445872

約数和(自身を除く): 128632071

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 361, 399, 931, 1083, 2527, 2793, 3803, 7581, 11409, 17689, 26621, 53067, 72257, 79863, 186347, 216771, 505799, 559041, 1372883, 1517397, 3540593, 4118649, 9610181, 10621779, 28830543, 67271267, 201813801]

約数ペア:

[(1, 201813801), (3, 67271267), (7, 28830543), (19, 10621779), (21, 9610181), (49, 4118649), (57, 3540593), (133, 1517397), (147, 1372883), (361, 559041), (399, 505799), (931, 216771), (1083, 186347), (2527, 79863), (2793, 72257), (3803, 53067), (7581, 26621), (11409, 17689)]