81038439

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{457}}^1$

素因数の和:560

約数の個数: 48

約数和(自身を含む): 132893280

約数和(自身を除く): 51854841

約数列:

[1, 3, 9, 17, 19, 51, 57, 61, 153, 171, 183, 323, 457, 549, 969, 1037, 1159, 1371, 2907, 3111, 3477, 4113, 7769, 8683, 9333, 10431, 19703, 23307, 26049, 27877, 59109, 69921, 78147, 83631, 147611, 177327, 250893, 442833, 473909, 529663, 1328499, 1421727, 1588989, 4265181, 4766967, 9004271, 27012813, 81038439]

約数ペア:

[(1, 81038439), (3, 27012813), (9, 9004271), (17, 4766967), (19, 4265181), (51, 1588989), (57, 1421727), (61, 1328499), (153, 529663), (171, 473909), (183, 442833), (323, 250893), (457, 177327), (549, 147611), (969, 83631), (1037, 78147), (1159, 69921), (1371, 59109), (2907, 27877), (3111, 26049), (3477, 23307), (4113, 19703), (7769, 10431), (8683, 9333)]