30731967

素因数分解:

$3^5\times 7^2\times {\mathrm{29}}^1\times {\mathrm{89}}^1$

素因数の和:147

約数の個数: 72

約数和(自身を含む): 56019600

約数和(自身を除く): 25287633

約数列:

[1, 3, 7, 9, 21, 27, 29, 49, 63, 81, 87, 89, 147, 189, 203, 243, 261, 267, 441, 567, 609, 623, 783, 801, 1323, 1421, 1701, 1827, 1869, 2349, 2403, 2581, 3969, 4263, 4361, 5481, 5607, 7047, 7209, 7743, 11907, 12789, 13083, 16443, 16821, 18067, 21627, 23229, 38367, 39249, 49329, 50463, 54201, 69687, 115101, 117747, 126469, 151389, 162603, 209061, 345303, 353241, 379407, 487809, 627183, 1059723, 1138221, 1463427, 3414663, 4390281, 10243989, 30731967]

約数ペア:

[(1, 30731967), (3, 10243989), (7, 4390281), (9, 3414663), (21, 1463427), (27, 1138221), (29, 1059723), (49, 627183), (63, 487809), (81, 379407), (87, 353241), (89, 345303), (147, 209061), (189, 162603), (203, 151389), (243, 126469), (261, 117747), (267, 115101), (441, 69687), (567, 54201), (609, 50463), (623, 49329), (783, 39249), (801, 38367), (1323, 23229), (1421, 21627), (1701, 18067), (1827, 16821), (1869, 16443), (2349, 13083), (2403, 12789), (2581, 11907), (3969, 7743), (4263, 7209), (4361, 7047), (5481, 5607)]