681813

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:185

約数の個数: 24

約数和(自身を含む): 1100736

約数和(自身を除く): 418923

約数列:

[1, 3, 9, 11, 33, 71, 97, 99, 213, 291, 639, 781, 873, 1067, 2343, 3201, 6887, 7029, 9603, 20661, 61983, 75757, 227271, 681813]

約数ペア:

[(1, 681813), (3, 227271), (9, 75757), (11, 61983), (33, 20661), (71, 9603), (97, 7029), (99, 6887), (213, 3201), (291, 2343), (639, 1067), (781, 873)]