71707923

素因数分解:

$3^4\times 7^3\times {\mathrm{29}}^1\times {\mathrm{89}}^1$

素因数の和:151

約数の個数: 80

約数和(自身を含む): 130680000

約数和(自身を除く): 58972077

約数列:

[1, 3, 7, 9, 21, 27, 29, 49, 63, 81, 87, 89, 147, 189, 203, 261, 267, 343, 441, 567, 609, 623, 783, 801, 1029, 1323, 1421, 1827, 1869, 2349, 2403, 2581, 3087, 3969, 4263, 4361, 5481, 5607, 7209, 7743, 9261, 9947, 12789, 13083, 16443, 16821, 18067, 23229, 27783, 29841, 30527, 38367, 39249, 50463, 54201, 69687, 89523, 91581, 115101, 117747, 126469, 162603, 209061, 268569, 274743, 353241, 379407, 487809, 805707, 824229, 885283, 1138221, 1463427, 2472687, 2655849, 3414663, 7967547, 10243989, 23902641, 71707923]

約数ペア:

[(1, 71707923), (3, 23902641), (7, 10243989), (9, 7967547), (21, 3414663), (27, 2655849), (29, 2472687), (49, 1463427), (63, 1138221), (81, 885283), (87, 824229), (89, 805707), (147, 487809), (189, 379407), (203, 353241), (261, 274743), (267, 268569), (343, 209061), (441, 162603), (567, 126469), (609, 117747), (623, 115101), (783, 91581), (801, 89523), (1029, 69687), (1323, 54201), (1421, 50463), (1827, 39249), (1869, 38367), (2349, 30527), (2403, 29841), (2581, 27783), (3087, 23229), (3969, 18067), (4263, 16821), (4361, 16443), (5481, 13083), (5607, 12789), (7209, 9947), (7743, 9261)]