31761081

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1$

素因数の和:258

約数の個数: 48

約数和(自身を含む): 52715520

約数和(自身を除く): 20954439

約数列:

[1, 3, 9, 11, 31, 33, 79, 93, 99, 131, 237, 279, 341, 393, 711, 869, 1023, 1179, 1441, 2449, 2607, 3069, 4061, 4323, 7347, 7821, 10349, 12183, 12969, 22041, 26939, 31047, 36549, 44671, 80817, 93141, 113839, 134013, 242451, 320819, 341517, 402039, 962457, 1024551, 2887371, 3529009, 10587027, 31761081]

約数ペア:

[(1, 31761081), (3, 10587027), (9, 3529009), (11, 2887371), (31, 1024551), (33, 962457), (79, 402039), (93, 341517), (99, 320819), (131, 242451), (237, 134013), (279, 113839), (341, 93141), (393, 80817), (711, 44671), (869, 36549), (1023, 31047), (1179, 26939), (1441, 22041), (2449, 12969), (2607, 12183), (3069, 10349), (4061, 7821), (4323, 7347)]