261640701

素因数分解:

$3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{127}}^1\times {\mathrm{617}}^1$

素因数の和:810

約数の個数: 48

約数和(自身を含む): 444248064

約数和(自身を除く): 182607363

約数列:

[1, 3, 7, 9, 21, 53, 63, 127, 159, 371, 381, 477, 617, 889, 1113, 1143, 1851, 2667, 3339, 4319, 5553, 6731, 8001, 12957, 20193, 32701, 38871, 47117, 60579, 78359, 98103, 141351, 228907, 235077, 294309, 424053, 548513, 686721, 705231, 1645539, 2060163, 4153027, 4936617, 12459081, 29071189, 37377243, 87213567, 261640701]

約数ペア:

[(1, 261640701), (3, 87213567), (7, 37377243), (9, 29071189), (21, 12459081), (53, 4936617), (63, 4153027), (127, 2060163), (159, 1645539), (371, 705231), (381, 686721), (477, 548513), (617, 424053), (889, 294309), (1113, 235077), (1143, 228907), (1851, 141351), (2667, 98103), (3339, 78359), (4319, 60579), (5553, 47117), (6731, 38871), (8001, 32701), (12957, 20193)]