81945423

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{4027}}^1$

素因数の和:4076

約数の個数: 48

約数和(自身を含む): 150808320

約数和(自身を除く): 68862897

約数列:

[1, 3, 7, 9, 17, 19, 21, 51, 57, 63, 119, 133, 153, 171, 323, 357, 399, 969, 1071, 1197, 2261, 2907, 4027, 6783, 12081, 20349, 28189, 36243, 68459, 76513, 84567, 205377, 229539, 253701, 479213, 535591, 616131, 688617, 1300721, 1437639, 1606773, 3902163, 4312917, 4820319, 9105047, 11706489, 27315141, 81945423]

約数ペア:

[(1, 81945423), (3, 27315141), (7, 11706489), (9, 9105047), (17, 4820319), (19, 4312917), (21, 3902163), (51, 1606773), (57, 1437639), (63, 1300721), (119, 688617), (133, 616131), (153, 535591), (171, 479213), (323, 253701), (357, 229539), (399, 205377), (969, 84567), (1071, 76513), (1197, 68459), (2261, 36243), (2907, 28189), (4027, 20349), (6783, 12081)]