31998813

素因数分解:

$3^1\times 7^3\times {\mathrm{11}}^2\times {\mathrm{257}}^1$

素因数の和:303

約数の個数: 48

約数和(自身を含む): 54902400

約数和(自身を除く): 22903587

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 121, 147, 231, 257, 343, 363, 539, 771, 847, 1029, 1617, 1799, 2541, 2827, 3773, 5397, 5929, 8481, 11319, 12593, 17787, 19789, 31097, 37779, 41503, 59367, 88151, 93291, 124509, 138523, 217679, 264453, 415569, 653037, 969661, 1523753, 2908983, 4571259, 10666271, 31998813]

約数ペア:

[(1, 31998813), (3, 10666271), (7, 4571259), (11, 2908983), (21, 1523753), (33, 969661), (49, 653037), (77, 415569), (121, 264453), (147, 217679), (231, 138523), (257, 124509), (343, 93291), (363, 88151), (539, 59367), (771, 41503), (847, 37779), (1029, 31097), (1617, 19789), (1799, 17787), (2541, 12593), (2827, 11319), (3773, 8481), (5397, 5929)]