31285989

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{443}}^1$

素因数の和:534

約数の個数: 48

約数和(自身を含む): 55411200

約数和(自身を除く): 24125211

約数列:

[1, 3, 7, 9, 19, 21, 57, 59, 63, 133, 171, 177, 399, 413, 443, 531, 1121, 1197, 1239, 1329, 3101, 3363, 3717, 3987, 7847, 8417, 9303, 10089, 23541, 25251, 26137, 27909, 58919, 70623, 75753, 78411, 176757, 182959, 235233, 496603, 530271, 548877, 1489809, 1646631, 3476221, 4469427, 10428663, 31285989]

約数ペア:

[(1, 31285989), (3, 10428663), (7, 4469427), (9, 3476221), (19, 1646631), (21, 1489809), (57, 548877), (59, 530271), (63, 496603), (133, 235233), (171, 182959), (177, 176757), (399, 78411), (413, 75753), (443, 70623), (531, 58919), (1121, 27909), (1197, 26137), (1239, 25251), (1329, 23541), (3101, 10089), (3363, 9303), (3717, 8417), (3987, 7847)]